Track your pregnancy week by week with our easy guide...

Pregnancy is an exciting time, but it can sometimes also be stressful. There's just so much to think about in order to keep you and your baby happy and healthy during their nine months of intensive growing.

Because we know how overwhelming this can seem at first, we've put together this handy pregnancy week by week guide. With you every step of the way, it details all the important bits – from fetal development to how your diet should be changing.

You'll be amazed at how quickly your baby grows, from the first few weeks when they're just a tiny cluster of cells, through to them developing their little arms and legs and learning how to kick and when at 12 weeks you can even guess their sex with the nub theory test.

While you're pregnant you'll probably want to make changes to your lifestyle, to give your little one the best start in life. This can include giving up things (like smoking!) and taking up other things (like regular doses of special vitamins and minerals).

We've laid out the things you can do each week in terms of your diet to make sure you're on track for a healthy pregnancy – like cutting out paté for instance, and eating plenty of folic acid-rich foods like spinach. Plus, you'll want to drink plenty of water to keep hydrated.

There are other things you need to know, too, like how to cure morning sickness. Click on however many weeks pregnant you are to see the most common symptoms, and the best cures we know of (in case you need to know, it's ginger for morning sickness).

Ready to learn more? Scroll down and select your week of pregnancy to read all about the symptoms, fetal development and things you should be doing for your stage of pregnancy…

Week by week pregnancy guide

Looking for tips on what to expect during your 32nd week of pregnancy? This pregnancy week by week guide explains the most common symptoms, how your baby is developing and includes the things you should be thinking about doing during this point in your term...

Symptoms at 32 weeks pregnant

Your uterus will be reaching its highest point now - about 12cm above your belly button. You may feel a tingling sensation in your pelvis. This happens when your baby is moving down your uterus and putting pressure on your nerves. Avoid standing or walking for too long and get plenty of rest with your feet raised.

Make sure you're getting enough iron in your diet. During pregnancy the amount of blood circulating around your body increases by up to 50%, so you need twice as much iron as you did before you were pregnant to carry oxygen around your body. Your midwife will routinely check to see whether or not you are anaemic. To boost your iron levels, start the day with a fortified breakfast cereal with a glass of orange juice rather than a cuppa. This is because Vitamin C helps iron absorb into the blood stream, while the tannin in tea inhibits it. Snack on dried apricots and make sure your diet includes a regular intake of iron rich food such as green, leafy veg (spinach, broccoli) or red meat.

The National Sleep Foundation's 1998 Women and Sleep poll found that 78% of women reported more disturbed sleep during pregnancy than at other times and that up to 15 per cent of women develop restless legs syndrome (RLS) during their third trimester of pregnancy.

Fetal development at 32 weeks pregnant

Your baby measures about 40cm, weighs 3lbs 8oz (1.6kg). They will double in size between now and birth! Their brain is growing so fast that the over the next few weeks the circumference of their head will be increasing by around 2.5cm a week.

All five senses are now working and they even have eyebrows and eyelashes. The hair on their head is still growing, as are tiny toe and finger nails (some babies are even born already needing them trimmed!)

Although the baby's now more constricted in your uterus, it can turn its head from side to side and practices vital reflexes, such as grasping.

Your baby is busy building an immune system - borrowed from you - against a wide range of diseases. This will help protect them after they're born until they're old enough to have built up their own immunity.

The changes you should make at 32 weeks pregnant

Some women will be offered another scan this week. This is true of women who:

• Have a low-lying placenta: A low-lying placenta is one that is lying near to or covering the cervical os (neck of the womb). This is known as placenta praevia. Because it can lead to bleeding when labour starts it is one reason why women will have an elective caesarean. Women identified as having a low-lying placenta will be offered another scan now to see whether the situation has changed. In most cases it will have. This is because as the uterus grows the placenta moves with it away from the cervix. In fact one study found that only 1 in 600 women who were identified as having a low lying placentas went on to need a caesarean.
• Women expecting twins or multiples: If you are expecting twins, whether they share a placenta or not, you will have an antenatal appointment and a growth scan this week.

Don't miss your antenatal classes. They're a great place to meet other couples in the same situation as you and to get practical help preparing for labour. A full antenatal course is usually one evening a week for 6 to 10 weeks, though some are shorter. In many parts of the country both NHS and private classes, such as those organised by the National Childbirth Trust (NCT) are booked up very early on. But even if you think you've left it too late, it's still worth seeing if you can still get on one.

You're now 33 weeks pregnant but what should you expect? Read week 33 of our week by week pregnancy guide to find out everything you need to know...Learn about your pregnancy week by week in this easy-to-use guide.

As the end of your pregnancy draws nearer it's a good idea to become familiar with what to expect from labour. We've put together this handy guide so you know how your baby is developing, what symptoms are normal at 33 weeks pregnant and what to expect when it comes to the big day...

Symptoms at 33 weeks pregnant

Both you and your partner will now sometimes be able to feel the outline of a small fist or foot jammed into the side of your abdomen. Just think - only a thin layer of skin, muscle and fat is separating you from your baby. Crazy right?!

Your belly will swell more now as the amniotic fluid is at its highest level - it will stay at this level until you give birth.

Fetal development at 33 weeks pregnant

Your baby measures about 42cm and weighs 4lbs. The brain and nervous system are now fully developed. Although the other bones are still hardening, your baby's skull will stay soft and separated to make birth easier.

Your unborn baby can remember sounds heard in the womb. In one famous experiment, the newborns of mums who had regularly watched Aussie soap Neighbours during pregnancy stopped crying and became more alert when the tune was played to them. In comparison, the newborns of mothers who hadn't watched the programme showed no response.

The changes you should make at 33 weeks pregnant

Try and set aside some quiet time twice a day to concentrate on your baby's movements, for counting kicks. There's less room now for him to move about, but you should still be feeling around 10 movements an hour. If, after really focusing on your baby's movements, you haven't felt 10 movements, have a sweet drink or snack and carry on counting. If you do feel that there has been a noticeable reduction or change in your baby's movements then don't wait until the next day. You should always contact your midwife or maternity unit straight away.

Now's also the time Know the signs of labour. For some women the first sign of labour is a 'show'. During pregnancy a sticky mucous plug seals your womb to help prevent infection. Before labour starts the cervix (neck of the womb) begins to thin, which can result in the plug becoming dislodged. (You may notice it in your pants or on the tissue when you go to the toilet.) Although this can happen up to six weeks before labour starts, it more usually occurs when labour is imminent.

For some women the first sign of labour is that their waters break either with a gush or a trickle. Some even hear a pop! Most women (60%) will begin to experience contractions within 24 hours, but if you don't go into labour then you may need to be induced. Without the protective amniotic fluid your baby is at risk of infection. Green or brown staining in your waters indicates that your baby has passed meconium (his first poo) - a sign that he could be in distress. Phone your midwife and go to hospital straight away.

If you are truly in labour then contractions will get closer and stronger in intensity. In the last few weeks of pregnancy many women experience practice contractions known as Braxton Hicks, which are your body's way of gently stretching your uterus for the big day. During Braxton Hicks you'll feel your stomach tighten, but only for a few seconds and it won't be painful. Braxton Hicks don't come regularly and two paracetamol will usually cause them to fade. If they don't, you'll know your baby is well and truly on the way!

Remember to drink plenty of fluids, preferably water. Your unborn baby drinks the amniotic fluid in your womb and then wees it out again. It's replaced every three hours so that's why it's very important to keep your fluids up.

You're now 30 weeks pregnant but what should you expect? Read week 30 of our week by week pregnancy guide to find out everything you need to know...

Now that you're 30 weeks pregnant, you don't have much of your pregnancy week by week guid to get through...

Here we reveal everything you need to know about being 30 weeks pregnant. Like you'll start to feel your baby move a lot more and you might be starting to have trouble sleeping. There are other things to think about too, like how your baby is growing and developing and what you can be doing to keep dreaded heart burn at bay.

30 weeks pregnant: Symptoms

Your uterus is now 10cm above your belly button. You'll probably feel dramatic movements as your baby turns and gets comfortable, often giving you painful kicks under your ribcage. You'll probably want to wee a lot more now as your baby presses down on your bladder and your pelvic floor muscles become stretched. Your belly button may pop out, but it will go back to normal after the birth.

If you're suffering from heartburn, particularly at night time, then doctors will often recommend sleeping on a pile of pillows. The problem with this is it's not always as comfortable as it sounds and can result in back or neck ache. So instead of pillows, try putting bricks under the base of your bed to elevate it. Another tip is to make sure you eat your evening meal early and don't take too many fluids before you go to bed. Foods known to exacerbate heartburn are peppermint, spicy foods, caffeine and chocolate.

Are you up and down to the loo half the night? Is heartburn separating you from a good night's sleep? Or maybe junior's little foot is jabbing you in the ribs and make peaceful slumber hard to come by? Well, while it may be cold comfort, you are certainly not alone. Sleep deprivation is a common complaint in the third trimester. In fact studies suggest that 30 per cent  of pregnant women have broken sleep during the third trimester with 98 per cent of them experiencing multiple night time awakenings.

30 weeks pregnant: Fetal development

Your baby will now measure about 39cm long and weigh about 2lbs 8oz. They are strong and active and you may find they are at their most lively at night time. Their wrinkly skin is getting smoother and the white, greasy vernix and the soft, protective coat of furry lanugo will start to disappear. Muscles, brain and lungs continue to mature and their skeleton is hardening. They're also doing some impressive peeing practice in your womb - around a pint a day, which your own kidneys recycle!

30 weeks pregnant: The changes you should make

Your ligaments are now pretty stretchy, ideal for gently practising some labour and birth positions every day. Squatting is especially good - squatting to deliver your baby will encourage your pelvis to open and it also makes good use of gravity. Birthing balls are a great way to help strengthen your body during pregnancy and help prepare your body for birth. They can also help provide relief from some of the aches and pains of late pregnancy.

It's never too late to visit the labour ward at your hospital. If you've already been as part of a large group, it's a good idea to go again as a couple, because as you get closer to the birth you'll think of all sorts of other things you want to ask and find out about. Go with a written list of questions that are important to you. You may want to ask whether there are beanbags, birthing balls and floor cushions you can use. If not, is it OK to bring in your own? Are epidurals available at any time during the night and weekends? Will you have the same midwife with you throughout labour and delivery?

At 11 weeks pregnant you're just beginning to move into your second trimester, where everything (hopefully!) should begin to get a bit more comfortable. Here's an overview of what you need to know about being 11 weeks pregnant...

Symptoms at 11 weeks pregnant

If you've been suffering with morning sickness and have been off your food for weeks then your weight may have dropped down a bit. Now is the time when your appetite and energy levels may start to make a welcome return and you may even find that you start gaining a few pounds. Your breasts probably look bigger and feel heavier, veins may be visible and your nipples will become larger and darker. You may also notice raised bumps on your nipples. These are called Montgomery's tubercles and are one of the many outwards signs of pregnancy that will disappear after your baby is born.

If you're used to sleeping on your stomach then sore boobs can come between you and a good night's sleep. If this is your preferred position then try training yourself to sleep on your left side. It'll help improve the flow of blood and nutrients to your baby as well as helping your kidneys get rid of waste and fluids. The sooner you get used to this position, the better you'll be able to sleep once your belly starts getting really big.

Fetal development at 11 weeks pregnant

Your baby is now about 2 inches long, around the size of a tomato. The bones of the face are fully formed. Ear buds look more like ears and fingers and toes are separating. There are even finger nails! Although your baby's head remains disproportionately large, their body is starting to straighten out and is now going through its own growth spurt. The umbilical cord is fully formed and the placenta is rapidly developing but won't be fully formed for another week.

From this week onwards your little one's heartbeat may become loud enough for your doctor or midwife to be able to monitor it with a special listening device called a Doppler.

Things to consider at 11 weeks pregnant

You may have your booking-in appointment this week and some women have a nuchal scan now, too. A nuchal scan is an ultrasound scan which is used to screen for Down's Syndrome.

All women in England should be offered a nuchal scan between 11 weeks, 2 days and 14 weeks, 1 day of pregnancy. Together with a blood test it is used to calculate your individual risk of having a baby with Down's Syndrome. The blood test and nuchal scan together are known as The Combined Test.

Nuchal means ‘neck' and at this ultrasound appointment your sonographer will measure the thickness of a pocket of fluid on the back of your baby's neck known as the nuchal fold. All babies have this fluid, but the amount may be more in babies with Down's Syndrome.

The blood test measures two proteins in your blood. These are hormones called PAPP-A (pregnancy associated plasma protein-A) and free B-hCG (B-human chorionic gonadotrophin).

The risk of your baby having Down's Syndrome is then calculated using software that takes into account your age, weight and family origin, along with gestation of the pregnancy. This type of screening test cannot give definite answers which is why your results are expressed as a ‘risk' of having a baby with Down's rather than a definite diagnosis.

If your risk is found to be one in 150 or less then you will be offered one of two diagnostic tests, a Chorionic Villus Sampling or an amniocentesis. Unlike screening tests which assess risk, diagnostic tests will give you a definite answer as to whether or not your baby has Down's Syndrome.

There are all sorts of concerns that come with antenatal screening and testing for foetal abnormalities and these can be testing times for many expectant parents. For help, advice and support, contact the charity Antenatal Results and Choices (ARC). Their helpline number is 0845 077 2290.

Mums-to-be get bombarded with dos and don'ts of pregnancy, particularly when it comes to healthy eating. But there's one new piece of advice that's bound to put a smile on your face and, so it would seem, your baby's. According to one study, pregnant women with a daily chocolate habit have babies who show less fear and smile and laugh more often at six months of age.

Get excited for what next week holds as at 12 weeks you will get the chance to try out the nub theory. Your 12 week scan will show you a clearer image of your little one from which you can guess the sex by interpreting the shape of their body.

Further advice and information:

• Visit the NHS for more pregnancy week by week advice 
• Download a pregnancy tracker app
• View all our pregnancy week by week guides

Your bra is bulging, your feel sick and your baby's only the size of a jelly bean. Welcome to being 9 weeks pregnant. But fear not, help is at hand...

The 1st trimester of pregnancy isn't always fun, but find out the good news about how your baby's developing. Here's what's occurring when you're 9 weeks pregnant.

Symptoms at 9 weeks pregnant

You may find that your waistbands start feeling a bit tight, but this is probably more to do with bloating than an expanding baby belly. Your bra may start to feel a bit snug, too, while morning sickness, mood swings and pregnancy fatigue may continue to leave you feeling drained and miserable.

It's hardly surprising, therefore, that most women whole-heartedly agree that the first trimester is the hardest. To compound matters, acne and greasy hair can become a daily challenge and you may feel like you've regressed into the hormone hell of your teenage years. The good news is that you're almost through the worst of it. The second trimester is in sight and from 12 weeks onwards you should start to feel more like your old self again.

Pregnancy does weird things to some people. If you find yourself chomping on charcoal or munching on mothballs then you're one of the tiny number of women suffering from extreme non-food cravings known as pica. Fortunately, most mums-to-be simply develop a pregnancy cravings for ice cream or pickled gherkins.

Sadly, during this early stage of pregnancy it is very common to experience a miscarriage. Around 15 to 20 per cent of pregnancies end in miscarriage and more than 80 per cent of those occur in the first 12 weeks of pregnancy. It's important to be aware of the signs and symptoms of miscarriage. 

Fetal development at 9 weeks pregnant

Your baby's now 18mm long, around the size of a jelly baby and is looking more like a little human. Nipples and hair follicles begin to form and the earliest beginnings of pointy elbows and tiny toes are just visible.

All essential organs have at least begun to form and their heart has now divided into four chambers. Their face is slowly forming. Their eyes are more obvious and have some colour in them although the eyelids will stay shut until Week 27. Their little mouth has a tongue and even tiny taste buds.

Changes to consider at 9 weeks pregnant

This may be the week in which you have your dating scan. However, if you've chosen to have a nuchal scan to screen for Down's syndrome then they may wait and date your pregnancy at the same time rather than having two separate scans. Nuchal scans can be carried out between weeks 11 and 14. Your booking-in appointment may be scheduled for this week.

Health professionals recommend that you have your first bra fitting towards the end of the first trimester, usually between eight weeks and 10 weeks. A good maternity bra has wide shoulder straps, support panels, and adjustable back fastenings.

Further advice and information:

• Visit the NHS for more pregnancy week by week advice 
• Download a pregnancy tracker app
• View all our pregnancy week by week guides

Finding out you're pregnant can be such an exciting time, but it can also start to feel a little overwhelming too!

After all, there's so much to think about and plan for, from calculating your due date to finding out which foods to avoid when you're pregnant.

One thing we can make a lot easier for you is keeping track of your important dates with a pregnancy calendar. With so many different dates and scans to remember, having them all in one place will make your life so much easier (not to mention your pregnancy so much more relaxing!).

Read more: Your week-by-week pregnancy guide

We've created your very own pregnancy timeline that you can download and print off, to make sure you have it with you at all times. You could keep a copy in your handbag, or pinned to the fridge - anywhere that will be a good reminder about those all-important milestones!

Even better, you can print a copy for your close friends and family so they can keep track of your pregnancy timeline too.

It can be fun keeping your nearest and dearest up to speed with all your hospital appointments and tests to start with - from trying out the nub theory at your 12 week scan to the official gender reveal at 20 weeks - but after a while you might be glad of a handy timeline you can hand them that does it all for you.

You can even print one for your partner, so he has no chance of missing any important dates!

Your FREE pregnancy calendar - DOWNLOAD now

Whether it's your very first scan or your check-ups along the way, we've listed all of those must-have pregnancy dates so you don't miss a thing.

It's important to remember that this calendar is a rough guide, but if you're worried about any of the dates or your pregnancy then don't hesitate to speak to your doctor or midwife straight away.

In your 16th week of pregnancy you have lots to think about, so to make sure your mind is at ease, that everything you're going through is normal, we've put together this guide. Scroll down for all the info you need on the symptoms you might be experiencing, as well as your baby's development...

Symptoms at 16 weeks pregnant

Your uterus has now grown considerably and weighs about 250 grams. You may be experiencing those pregnancy hot flushes in more ways than one. If the first trimester left you too sick and tired to raise a smile, let alone muster the energy for some fun between the sheets, then the second trimester may well make up for it. Pregnant women often find that the middle months of pregnancy are ones during which their sex drive goes into overdrive.

However, while an increased libido is often one of the plus sides of pregnancy, changes in blood flow and metabolism can also leave you feeling hot and bothered. Sudden hot flushes and excessive sweating can both become are par for the course.

Carrying around extra weight in pregnancy can lead to a lowering of your foot arches and an increase in shoe size. Doctors at the University of Iowa have found the arch of the foot falls between two and ten millimetres during a first pregnancy. And, it doesn't return to normal...

Fetal development at 16 weeks pregnant

Your baby is around 11.6cm long and weighs around 135g. In the next few weeks they'll go through a tremendous growth spurt, doubling their weight and putting on centimetres in length.

Your baby's hearing is one of the first senses to develop in the womb. From this week onwards they'll start to be able to hear your voice and other sounds from outside the womb - albeit a bit muffled and muted. It was thought that babies couldn't hear until the ear was structurally complete at around 24 weeks, but a Belfast study of over 400 babies at just 16 weeks, saw clear responses via ultrasound when researchers beamed in a pure pulse of sound.

Your baby's head will develop further and their ears and eyes will move into the position they will be in when they are born.

The changes you should make at 16 weeks pregnant

You'll now have your 16 week antenatal appointment. At every check expect to provide a urine sample, which will be tested for sugar and protein. Your midwife will take your blood pressure and feel your abdomen to check the height of your uterus which tells her how your baby is growing. Routine checks are the only way of keeping an eye on how you and your baby are doing. They're also an opportunity to discuss with your midwife any concerns you have, from healthy eating in pregnancy to the birth itself.

At this 16-week appointment your midwife may review and discuss the results of any screening tests you have had, as well as giving you specific information about the anomaly scan that will be offered around 20 weeks.

She may recommend iron supplements if your haemoglobin levels are low. If you are expecting twins and an earlier scan identified them as sharing a placenta (monochorionic) then it's recommended that you are scanned every two weeks throughout your pregnancy. Where unborn identical twins have different sacs in the womb but share the same placenta they can suffer from a rare but serious condition known as twin-to-twin transfusion syndrome which requires careful monitoring.

Monochorionic twins will have an antenatal appointment and a growth scan this week. Twins who do not share a placenta (dichorionic) will not have the growth scan but will have an routine antenatal appointment.

You could have the Quadruple Test this week and some women will have an amniocentesis this week, too. When you've got a diary full of antenatal appointments and a head full of information, then small matters like a trip to the dentist may not be top of your to-do-list. However, scientists have found a link between gum disease and premature delivery so it's worth paying particularly attention to your dental hygiene and health. And it's free! If you aren't registered with a dentist then you can find an NHS dentist locally by going to nhs.uk.

Even if you don't fancy enrolling in an exercise class then do make time for your pelvic floor exercises. Your pelvic floor is made up of layers of muscles that stretch from your pubic bone to the base of your spine. These muscles come under considerable strain during pregnancy and child birth and can lead to incontinence issues. Talk to your midwife about pelvic floor exercises.

Further advice and information:

• Visit the NHS for more pregnancy week by week advice 
• Download a pregnancy tracker app
• View all our pregnancy week by week guides

You're just under half way when you're 18 weeks pregnant, so you'll be starting to feel your baby grow rapidly. There are lots of things to think about at this stage, from tests and scans to the typical symptoms you might be experiencing. 

Symptoms at 18 weeks pregnant

Are you feeling a fluttery sensation in your bump? That's your baby kicking. These early baby movements feel like soft tapping, butterflies or even indigestion above the pubic bone and they're not strong enough for your partner to feel. But don't worry if you haven't felt anything yet... You may have several more weeks to wait. Many women who are expecting their first babies don't feel any movements until around 20 weeks.

Around this time you may start to notice thread veins, spider veins or broken veins appearing on your legs, or that the veins on your calves appear more prominent. During pregnancy your blood volume increases by about 45-50% which inevitably puts an extra burden on your veins. What's more the increase in the pregnancy hormone progesterone causes the blood vessels to relax. During the third trimester this can develop into large swollen varicose veins which can be painful and tender.

Varicose veins are most common in women who've already had one or more pregnancies and if your mother or sister suffers from them then you're more likely to follow in the same vein.

To lessen the condition try and elevate your legs as much as possible, avoid standing for long periods and do gentle leg exercises like ankle circling and calf stretches. Wearing class two support stockings or other forms of compression tights may give relief and help reduce the number of veins you get during pregnancy. Talk to your GP who may be able to prescribe these to you on the NHS.

Fetal development at 18 weeks pregnant

Your baby is around 14 cm long and weighs roughly 190g. The soft bones are beginning to harden, the chest is moving up and down to mimic breathing, although no air is being taken in, only amniotic fluid. Male babies are developing their prostate gland.

Your baby now has a greater covering of the fine downy hairs called lanugo which started to appear several weeks ago. At this stage your baby has very little body fat to keep him warm so it is believed that lanugo hair grows as a means of insulation. Amazingly your baby is using his larynx to produce sound vibrations.

The changes you should make at 18 weeks pregnant

Although often referred to as your 20-week pregnancy scan, you may get an appointment any time from 18 weeks onwards for a fetal anomaly scan. This is your baby's top-to-toe health check and is carried out at a point when his skeleton and internal organs such as the heart and kidneys are clearly visible. The sonographer will carry out a number of checks and measurements. These include:

• The circumference and width of your baby's head. This is one of the best indicators of a baby's age.
• The length and shape of the spine are checked and the umbilical cord is checked to see that it contains two arteries and a vein.
• The lungs and the heart, with its four chambers and major blood vessels will be looked at.
• Everything within the abdomen will be checked and the kidneys and bladder will both be carefully examined.
• The appearance and position of the face and neck are examined.
• The position and length of your baby's arms and legs will be checked to ensure all the bones are present and that they are the right shape and size.
• The appearance of hands and feet will be checked.
• The site of the placenta will be checked to see if it's low lying and in danger of blocking the cervix.
• A scan may confirm your baby's sex.

If you're expecting twins who have been identified as sharing a placenta you will probably have an ultrasound scan this week. This may be a simple growth scan or the full anomaly scan.

You could have the Quadruple Test this week and some women will have an amniocentesis this week, too.

If pregnancy is making it difficult for you to do your normal job (perhaps it involves standing up for long periods of time or lifting) you are entitled to special help or even alternative employment. Talk to your employer.

Don't forget to take money with you as most hospitals have a small charge of around £3-£5 for a scan photo. And when you get them home don't try to laminate them as they're printed on thermal paper and the heat will damage them. Because they can also fade with time, it's a good idea to scan them in and keep them safely the cloud. 

Further advice and information:

• Visit the NHS for more pregnancy week by week advice 
• Download a pregnancy tracker app
• View all our pregnancy week by week guides

8 weeks pregnant? This is when the tiredness and morning sickness can start to to kick in. We discuss the reasons why, and others things to consider during your eighth week of pregnancy.

Symptoms at 8 weeks pregnant

You may be feeling sick and tired as pregnancy fatigue and morning sickness take their toll. Those pesky pregnancy hormones have a lot to answer for and it's the dramatic rise in progesterone in these early weeks that is responsible for making you feel wretched.

Although morning sickness can make you feel truly dreadful, it is a normal complaint of early pregnancy and one that can usually be managed with some self-help measures. However, sometimes morning sickness becomes so severe that medical help is needed.

You should contact your GP or midwife if you are vomiting more than four times a day, you are losing weight, or you are constantly thirsty but not passing much urine. This is particularly true if you are throwing up more fluids than you are getting down as it could be a sign of dehydration. Morning sickness can sometimes mean all day sickness, but if there is a time of day when any vomiting and sickness subsides, take your pregnancy vitamin supplement then.

Fetal Development at 8 weeks pregnant

At the end of this week the embryonic period ends and the foetal period begins. Your baby's now the size of a kidney bean and is known as a 'foetus' rather than an 'embryo'. Hands and feet have fingers and toes but may still be webbed. The tadpole-like tail is completely gone, lungs have begun to form while all the organs, muscles and nerves have started to function. In fact your baby is already moving around in your womb, although it will be many weeks yet before you'll be able to feel those first flutters.

Changes to consider at 8 Weeks pregnant

All women should be offered a dating ultrasound scan between eight weeks and 14 weeks of pregnancy. The sonographer will date your pregnancy by measuring your baby from the top of his head to the bottom of his spine. In the first 12 weeks all embryos develop at the same rate, which is why your pregnancy can be accurately dated by measuring your baby's length. It's often at this first dating scan that any twin or multiple pregnancies will be detected.

Your first antenatal appointment is known as your booking-in appointment. This will be scheduled any time between eight-12 weeks. From this point onwards you're officially pregnant and will be given your own set of antenatal notes to take away with you. Your midwife will take a family medical history and will give you information about antenatal screening and diagnostic tests available. She will take your blood pressure and test a urine sample for protein and sugar.

These routine checks will be carried out at every subsequent antenatal appointment as raised blood pressure and protein in the urine are important signs of pre-eclampsia, a potentially life-threatening condition of pregnancy. She will measure your height, weight and will take a blood sample. She may also carry out a physical examination, checking your breasts, heart and lungs. You will also be asked where you want to have your baby. (If you haven't yet made up your mind, don't worry - there's still plenty of time to make a decision.)

When you go for your booking-in appointment the blood sample taken will be tested to check your blood group and to see whether you are rhesus positive or rhesus negative. (If you are RhD negative you will be offered routine anti-D injections as part of your antenatal care at 28 weeks and 34 weeks of pregnancy.) While there are standard tests that will be carried out, there is another group of tests that will require your written consent. These include tests for HIV, Hepatitis B, syphilis and your immunity to rubella. You may also be offered a test for inherited blood disorders such as sickle cell and thalassaemia.

Further advice and information:

• Visit the NHS for more pregnancy week by week advice 
• Download a pregnancy tracker app
• View all our pregnancy week by week guides

Mood swings, fatigue and constant trips to the toilet sound familiar? You're probably 6 weeks pregnant and a trip to you GP is in order... Keep a close eye on your pregnancy week by week with our handy guide.

When you hit 6 weeks pregnant, you're still in the early stages of pregnancy and the uterus is the size of a small pear. By the end of the 40 weeks, just before you deliver the fruits of your womb, it'll be the size of a large watermelon.

Symptoms at 6 weeks pregnant

Congratulations! You're officially pregnant and you're over the moon. Even though it's early days, the first signs of pregnancy may start to appear. Mood swings are common in early pregnancy so you may find you're quick to tears or tantrums. Your breasts might feel heavy, tender and sore and you'll need to pee with annoying frequency.

Tiredness can hit you like a freight train. We all know what it's like to feel weary after a few late nights, but the exhaustion you experience with early pregnancy is on a whole other level. When you're newly pregnant it can feel as though you've hit a wall of tiredness and the daily grind can really get you down. The only thing you can do is surrender to it and that means plenty of early nights. 

That said, flagging energy levels can receive a much-needed boost with just 10 or 15 minutes shut-eye. But don't nod off for longer than 20 minutes or you may wake up feeling worse than ever. Fresh air, gentle exercise and avoiding sugar can also help you recover from a bad night's sleep during pregnancy.

Fetal development at 6 weeks pregnant

Week 6 is one of rapid growth. Your baby lies peacefully in the amniotic fluid but there's a lot going on. They're only 2-4mm long and yet by just 28 days after conception the neural tube along their back will have closed. Their tiny heart is beating rhythmically at around 80 beats a minute, pushing blood cells through the tiny vessels that supply them with the oxygen and nutrients to help them develop. Other organs starting to make an appearance this week include the spleen, gall bladder and pancreas. The beginnings of their face and neck are starting to emerge, tiny ears are starting to grow and arm buds and a tail are visible.

The changes to consider at 6 weeks pregnant 

Once you've had a positive pregnancy test, visit your GP who will work out your estimated due date and give you information on keeping you and your baby healthy. This will include advice on taking the right amount of folic acid and vitamin D supplements and guidance on lifestyle factors that may impact on the health of your baby such as smoking, recreational drug use and alcohol.

They will also chat to you about healthy eating options in pregnancy and the importance of food hygiene. Your doctor may also take a medical history and make you a booking in appointment for a few weeks' time.

After your GP has taken a detailed family history you may be offered a simple blood test to screen for Sickle Cell Disorder and Thalassaemia. These are inherited blood conditions that can have very serious health implications for your baby. They mainly affect people who originate from Africa, the Caribbean, the Middle East, Asia and the Mediterranean, but are also found in the northern European population.

If the blood test shows that you are a carrier of one of these conditions, then your baby's father will be invited for a blood test. If he is also a carrier there's a one in four chance that your baby is affected, so you will be offered a diagnostic test to find out. This is most likely to be a test known as Chorionic Villus Sampling that is usually carried out at around 11 weeks.

Further advice and information:

• Visit the NHS for more pregnancy week by week advice 
• Download a pregnancy tracker app
• View all our pregnancy week by week guides

You're now 19 weeks pregnant but what should you expect? Read our overview of body changes, annoying symptoms (heartburn, anyone?) and how your baby is developing. 

Symptoms at 19 weeks pregnant

Heartburn in pregnancy can be quite severe now as the uterus pushes up against the stomach, but it will ease off considerably next month when the baby 'drops'. 

Meanwhile, avoid foods which can aggravate it. These include spicy foods, tomatoes, chocolate and peppermint. Avoid eating late in the evening and don't drink a lot of fluids in the last couple of hours before bedtime. Another tip is to prop yourself up with lots of pillows so that gravity works in your favour to stop acid coming up from your stomach. If the problem persists ask your midwife which antacids (indigestion tablets) are safe to take.

In the first trimester pregnancy hormones can cause severe mood swings, but so can your diet. If nobody likes you when you're hungry, don't reach for a Snickers, but do make sure you're eating plenty energy rich foods.

Snacks such as a bowl of cereal, a banana smoothie, a handful of dried fruit or a piece of malt loaf will keep your blood sugar levels constant - and your mood sweet! You may be surprised to hear it, but women are two or three times more likely to snore during pregnancy so don't worry if you suddenly develop this habit.

Fetal development at 19 weeks pregnant

Your baby is around 15.3 cm long and weighs roughly 240 grams. Milk teeth have formed in his gums and a white fatty substance is beginning to form on his skin. This is called Vernix and it is there to protect it from the amniotic fluid and stop your baby coming out like a wrinkled prune.

Your baby's reproductive organs are developing too and a penis may be quite easy to see in your anomaly scan if you're having a little boy. Make sure you tell the nurse if you don't want to know the sex.

The changes you should make 19 weeks pregnant

You may have your anomaly scan and amniocentesis this week, and some women will have the quadruple blood test, too. The latest you can have this screening test is 20 weeks and 0 days.

It's also a good idea to think about whether you want a hospital birth or whether you'd you prefer to have your baby in a midwifery led unit. Maybe you would like to have your baby at home. Now you're used to being pregnant you may find it easier to think about what sort of birth you might like and where you would prefer to have your baby.

If you're finding the whole process of being a little overwhelming, that's okay too. Although pregnancy is an exciting time, it can also be pretty nerve wracking so it's important to speak to your friends, family, midwife or GP about how you're feeling.

Further advice and information:

• Visit the NHS for more pregnancy week by week advice 
• Download a pregnancy tracker app
• View all our pregnancy week by week guides

You're now 25 weeks pregnant but what should you expect? Read week 25 of our week by week pregnancy guide to find out everything you need to know... 

Being pregnant means there's a lot to think about, which is why a pregnancy week by week can be so useful. Here's everything you need to know about being 25 weeks pregnant. With 2,200+ babies born in the UK every day you're in good company when it comes to your pregnancy journey, and at 25 weeks you'll be feeling your baby growing every day.

Symptoms at 25 weeks pregnant

Your increasing size is taking its toll. Backache, swollen feet and ankles are common complaints at this stage in pregnancy. So is sciatica, which happens when the growing uterus places pressure on your back and pelvis, causing periodic shooting pains in your lower back and legs. Rest, take a warm bath or apply ice to the sore area.

Another irritating complaint of pregnancy is thrush. Unfortunately this can be a recurring irritation as changes in the levels of female hormones, such as oestrogen, not only increase your chances of developing it, but also make it more likely to keep coming back. Talk to your pharmacist or visit your GP who is likely to prescribe a cream and pessary treatment. Oral remedies for thrush should not be taken during pregnancy.

It's not uncommon to experience nose bleeds during your pregnancy too as your hormones fluctuate, your body's tissues relax - including those in your nose! A dry nose can also contribute to nosebleeds so it's important to keep hydrated and you may find dabbing some petroleum jelly in each nostril eases the nose bleeds.

Fetal development at 25 weeks pregnant

Your baby measures 34.6cm and weighs around 660 grams. Their spine structure is continuing to develop, nostrils are open and ears are working perfectly. They are also swallowing tiny amounts of amniotic fluid which can give them hiccups. You'll know when they have them because you'll feel them jerking around. They'll be growing at a rate of around 1cm a week and over the next five weeks they'll put on around 300g in weight.

The changes you should make at 25 weeks pregnant

If this is your first baby then you will have a routine check-up scheduled for Week 25. Your midwife will carry out her usual checks on your blood pressure and test for signs of protein in your urine. She will also use a tape measure to measure and plot your symphysis-fundal height.

Most antenatal classes take place around 8-10 weeks before your baby is due. However, if you're expecting twins you may want to start your antenatal classes now. Term for twins is considered to be 38 weeks, not 40, and many do have a habit of putting in an early appearance.

Make sure you include fish as part of your weekly diet. It has considerable health benefits in pregnancy and has been proven to benefit the development of your baby's heart, eyes and brain. In fact one study found that children of mothers who had eaten a reasonable amount of oily fish during pregnancy had, on average, better communication and social skills at age 7.

At 20 weeks you're halfway through your pregnancy. Now is the time for scans and you might want to start trying to work out which baby names you do and don't like...

Symptoms at 20 weeks pregnant

The mid-way 'blues' are pretty common at this point, so if you're feeling fed up, you're not alone. Prenatal depression is far more common than you think - if you're at all worried about how you're feeling, talk to your GP or midwife. 

Around this time you may start to experience a sharp jabbing pain in your side, most commonly on the right side of your pelvis. This is known as round ligament pain and is caused by the stretching of the round ligament which supports the uterus.

Any movement, even just standing up quickly, laughing, or coughing can cause a sudden sharp pain, but this is perfectly normal and only lasts a few seconds. If you experience any persistent abdominal pain always consult your GP or midwife.

Fetal development at 20 weeks pregnant

Your baby is around 16.4cm long if measured from crown to rump. However, from now on they'll be measured from crown to heel, making them about 25cm.

Although their eyelids remain closed until about the 26th week, your baby is already sensitive to light. Studies have shown that when a bright light is shone onto a mother's bump, her baby responds with an increase in heart rate.

Your baby's started moving around a lot - and even growing hair. You should also be able to see if you're expecting a little boy or girl on your baby scan, so don't forget to say if you don't want to know the gender. 

If it's a girl, she's beginning to develop a vagina, her uterus is almost formed and she has six million eggs in her ovaries. If you're expecting twins then it's comforting to know that they're already bonding in the womb. At 20 weeks twins have been seen touching faces and even holding hands!

The changes you should make 20 weeks pregnant

The fetal anomaly scan is often referred to as your 20 week scan and is most likely to be scheduled for this week. Seeing your baby close up on the screen is exciting, emotional and reassuring experience. And, it's and one of the events in pregnancy that can really help you and your partner bond with your growing offspring. If you wanted to get an even closer look, you could also consider paying for a 3d scan. 

Your anomaly scan also really drums home the fact that in a few months you'll be welcoming a little person into the world. Now is a good time to start thinking about what you might like to call your little one - from unique baby names, old-fashioned baby names and unisex baby names . 

If you're expecting twins, then you'll have another antenatal appointment and growth scan this week. For the quadruple test, the latest you can have this screening test is 20 weeks and 0 days. Some women will have an amniocentesis this week, so that's another thing to keep in mind.

Further advice and information:

• Visit the NHS for more pregnancy week by week advice 
• Download a pregnancy tracker app
• View all our pregnancy week by week guides

You're now 21 weeks pregnant but what should you expect? Read week 21 of our week by week pregnancy guide to find out everything you need to know...

Tracking your pregnancy week by week is helpful for keeping on top of everything and getting prepared for your little one. Here's everything you need to know about being 21 weeks pregnant.

At 21 weeks pregnant you can start thinking about when you'd like to take your maternity leave and you might even want to start thinking about baby names. We've put together everything you need to know about this week of your pregnancy, so you can relax, knowing everything you're going through is normal...

Symptoms at 21 weeks pregnant

You may start to feel a bit breathless around this time as your uterus presses against your diaphragm and leaves less room for your lungs. If you're having trouble sleeping, try putting a pillow between your legs and get used to sleeping on your side.

Have a warm milky drink and snack before bed (hunger is a common cause for insomnia in pregnancy) and try to relax. Listen to soothing music, or a relaxation tape. But don't take sleeping pills, even herbal ones aren't advisable in pregnancy.

Up to 30% of mums-to-be suffer from leg cramps during pregnancy. These can be excruciatingly painful and often strike at night. If you're one of the unlucky ones, try sticking a pillow under your feet at night or even raising the foot of the bed. Another tip is to do some calf stretches several times during the day and before going to bed.

If you suffer from eczema you may find that it improves during pregnancy. This may be due to an increase in the body's natural steroid-like hormones that are produced during pregnancy.

Fetal development at 21 weeks pregnant

They are now around 26.7cm and weighs 360 grams. Their heart is getting stronger, legs are in proportion to the body and baby's putting fat on their bones. Because their muscular and nervous systems are now mature enough for them to stretch and move their limbs they'll become increasingly active... even doing backflips while there's room!

The changes you should make at 21 weeks pregnant

Now's the time to start thinking about when you might want to go on your maternity leave. Usually, the earliest leave can start is 11 weeks before your expected week of childbirth, although many women prefer to work as close to their due date as possible so that they can have longer at home with their new baby.

Ask your GP or midwife for your maternity certificate called a MAT B1. This is proof that you're pregnant and confirms when your baby is likely to arrive. You must give it to your employer at least three weeks before you intend to take your maternity leave. Some women will have a foetal anomaly scan or amniocentesis this week, so that's another thing to consider.

You're now 26 weeks pregnant but what should you expect? Read week 26 of our week by week pregnancy guide to find out everything you need to know...During your pregnancy it's nice to know that the symptoms you're feeling are normal, which is why a pregnancy week by week guide can be so useful.

Here's a round up of everything you need to know about being 26 weeks pregnant, including how your baby is growing and developing...

Symptoms at 26 weeks pregnant

You'll be putting on weight now at the rate of about a 1lb a week and may already have gained anywhere between 15lbs and 21lbs. You've been feeling your baby's movements for some time now, but around this point in your pregnancy your partner will be able to feel those little kicks from the outside.

Don't worry if you feel your uterus suddenly tighten then relax. These are practice contractions called Braxton Hicks. They're your body's way of practicing for the real thing and toning up your uterus in preparation for labour.

Fetal development at 26 weeks pregnant

Your baby is around 35.6cm and weighs 760 grams. Their lungs and brain are continuing to develop and very loud noises can make them jump. Their eyelids will open for the first time this week and they'll start to blink. (The eyes of caucasian babies are almost always blue when they're first born.) Their spine is becoming stronger and more supple. Your baby will now have distinct toenails, finger prints and even eyelashes.

The changes you should make 26 weeks pregnant

One purchase that does require some careful consideration is a car seat. Hospitals will not let you take your baby home without one, so read our guide to choosing a car seat.

Bonding with your baby is something that starts in the womb, but partners can feel a bit on the outside - quite literally. But there are plenty of ways your other half can start bonding with your baby. Some dads have done everything from making homemade telephones out of empty toilet roll tubes to listening to their baby's heartbeat with a pinard stethoscope. One dad even sung ‘I'm Forever Blowing Bubbles' to his baby every night in the hope that it would come out a true West Ham supporter.

Keeping fit during pregnancy is a good idea and swimming can be particularly soothing as the water supports your baby bump. Swimming also helps reduce swelling and boost your circulation.

The government recommends getting a whooping cough vaccination for women between 16 and 32 weeks of pregnancy, so if you haven't had it already speak to your GP about getting it booked in soon.

If you've decided you want to have your baby at the hospital, it's worth preparing your hospital bag in the next few weeks too...

You're now 15 weeks pregnant but what should you expect? From scans and check ups to morning sickness and backache - there's a whole lot of things to think about when you get to 15 weeks of pregnancy. Here's an overview of what you need to know...

Symptoms at 15 weeks pregnant

You knew about the morning sickness, the backache in pregnancy, even the pregnancy heartburn, but a blocked nose? Feeling stuffed up may be one of the lesser known side-effects of pregnancy, but nearly a third of pregnant women experience a blocked up nose during pregnancy. Known as pregnancy rhinitis, it is caused by a rise in oestrogen and an increased blood flow. 

Nosebleeds are another nuisance which are caused as your increased blood flow put pressure on the vessels in your nose, causing them to break. To stem the flow of a nose bleed stay sitting and firmly pinch the soft part of your nose just above your nostrils for about 10 minutes. Both symptoms often start early in the second trimester and can continue throughout the rest of your pregnancy. Try setting up a humidifier in the bedroom as this can help with a blocked up-nose.

Fetal development 15 weeks pregnant

Your baby is around 10.1 cm long and weighs around 70 grams (the weight of a large egg). Your baby's body is now growing at a faster rate and they're starting to look more in proportion. Hair and eyebrows are also beginning to grow and your baby may even be able to suck its thumb.

A baby's sweet tooth starts in the womb. The things you eat and drink flavour your amniotic fluid and stimulate your baby's tiny taste buds. Studies have shown that a foetus's swallowing increases when surrounded by sweet tastes and decreases with bitter and sour tastes. Unborn babies have even been seen to express their displeasure with a frown.

The changes you should make at 15 weeks pregnant:

You may have the Quadruple Test this week. This is a blood test used to screen for Down's Syndrome and Spina Bifida. If you have chosen to be screened for abnormalities and a diagnostic test has been recommended then this is the earliest point at which an amniocentesis could be carried out. An Amniocentesis is not a routine antenatal test. You will only be offered an amniocentesis if you are identified as having a high risk of carrying a baby with fetal abnormalities such as Downs Syndrome.

Unlike antenatal screening tests, an amniocentesis is an invasive test. A fine needle is passed through your abdomen and guided via ultrasound into your uterus in order to collect a small sample of amniotic fluid. The fluid sample contains cells from the baby which can be grown in culture in a laboratory and used to look at the baby's chromosomes.

There are two main tests that can be done to look at the baby's chromosomes. The first is called a rapid test. It can look for the chromosome disorders Down's syndrome, Edward's syndrome and Patau's syndrome. Results from this usually take three days. The second test is called a full karyotype which looks at all the baby's chromosomes. This process can take up to three weeks.

There are some risks though. Approximately one out of every 150 women who has an amniocentesis will have a miscarriage. If you're anxious about giving birth or would just like to learn relaxation and breathing techniques to reduce fear and increase confidence in labour then you may want to consider hypnobirthing, a technique widely reported to have been used by the Duchess of Cambridge during the birth of Prince George.

Further advice and information:

• Visit the NHS for more pregnancy week by week advice 
• Download a pregnancy tracker app
• View all our pregnancy week by week guides

You're now 36 weeks pregnant but what should you expect? Read week 36 of our week by week pregnancy guide to find out everything you need to know...

As your baby grows you may feel uncomfortable as they wriggle around to get themselves comfy and there'll be a few tests your midwife will want to do, too. Here's what to expect when you're 36 weeks pregnant...

Symptoms at 36 weeks pregnant

The top of your uterus has reached its highest point now, just underneath your breastbone. You may feel jabbing pains in your ribs as your baby kicks. Some relief should come when your baby starts to engage.

This is when his head moves down into your pelvis in readiness for the birth. You can normally sense when your baby drops down to the engage position. Breathing will be easier and a lot of the discomfort you've felt will get better.

Fetal development at 36 weeks pregnant

Your baby now measures over 46cm and weighs 5lbs 8oz (2.5kg). Their lungs are developing in preparation for breathing outside the womb. They are running out of room and now squirm vigorously to get more comfortable. If they haven't turned upside down already, they're probably about to. Their digestive system is now filled with meconium - a sticky dark green substance made of dead skin cells, lanugo and excretions from his bowel, liver and gall bladder that will come out as his first poo. They can turn their head and have fully formed fingernails - they may eve scratch themselves.

The changes you should make at 36 weeks pregnant

During your routine antenatal appointment your midwife will measure your blood pressure and test for protein in your urine. She will also measure and plot symphysis-fundal height and check the position of your baby.

If your baby is breech you may be offered an external cephalic version. This is where the obstetrician tries to turn your baby into a head down position by applying pressure on your abdomen. It is a safe procedure, although only 50% of breech babies co-operate. Those that are moved into a head down position tend to stay that way. If your baby remains in a breech position then you may be advised to have a Caesarean section.

Your midwife will talk to you about the benefits and techniques of breastfeeding and tell you about the newborn screening tests and vitamin K injection that will be given to your baby at birth. She may also talk to you about taking care of yourself after the birth and advise you on the baby blues and the signs of postnatal depression.

If you are expecting twins or multiples then you will have an antenatal appointment and growth scan this week.

It is entirely up to you when you start your maternity leave, but bear in mind that if you are absent from work for a pregnancy-related reason in the last four weeks of your pregnancy, your employer can start your maternity leave and pay.

Worried about ruining a perfectly good mattress if your waters break in bed? Why not invest in a mattress protector for a double bed. Don't worry if it turns out to be a wasted investment. In years to come you can use it as a night time piddle pad for your potty-training toddler!

Did you know? Only 5% of babies arrive on their due date... Doctors suggest you expect D-day in the fortnight surrounding your official date.

You're now 27 weeks pregnant but what should you expect? Read week 27 of our week by week pregnancy guide to find out everything you need to know..

During your 27th week of pregnancy it's a good idea to get your birthing plan in place, and a few other bits and bobs. Here's everything you need to know about being 27 weeks pregnant...

Symptoms at 27 weeks pregnant

You'll be around 7-10kg heavier than normal and may feel a bit breathless as your uterus gets closer to the ribcage. You may experience some joint pain as your pregnancy progresses. This is due to the action of the hormone Relaxin, levels of which increase tenfold during pregnancy. Relaxin plays a crucial part in preparing your body for labour by loosening the cartilage that holds bones together. This will make your baby's eventual passage out of the womb easier.

The down side is that Relaxin doesn't just target your pelvis but hits all of your joints. For some women this normal side-effect of pregnancy can develop into a condition known as Symphysis Pubis Dysfunction. If you experience pain at the front and/or back of the pelvis when walking going up and down stairs, turning over in bed and when standing on one leg to pull your trousers on, then you may have SPD. Don't let daily pain grind you down. Contact your GP or midwife who will be able to refer you to a physiotherapist for treatment.

A poll of 1,000 pregnant women by the Society of Chiropodists and Podiatrists found that seven out of 10 women suffered from foot problems. So if you've lost the spring in your step then it's hardly surprising. Feet can take a real pounding during pregnancy. There's the extra weight, the puffiness, not to mention the prospect of fallen arches. The best thing you can do is invest in some comfy supportive footwear. Go for a style that's got a strap or Velcro and which is easy to adjust and put on (you'll have trouble bending to reaching your feet in those final weeks). A heel height of around 3cm will shift your weight a little further forward on your feet which can help alleviate heel pain and discomfort. Another tip is to leave your shoe shopping ‘til late in the day when your feet are at their largest.

Fetal development at 27 weeks pregnant

Your baby's around 36.6cm long and weighs 875 grams. This is a week of rapid brain development. Your baby sleeps and wakes at regular intervals, opens and closes their eyes and sucks their thumb. Fat stores continue to develop to keep your baby warm once they're born.

The changes you should make at 27 weeks pregnant

With the average couple spending around £1,800 before their baby even arrives, it might be a good idea to carry out a financial review and look at ways you can save money on your family finances.

Start thinking about the sort of birth you might like. If you're having a hospital birth then it's a good idea to write a birth plan so that your midwife can try to help you achieve the birth you want. It's unlikely that the midwife on duty on the labour ward will be someone you've met before, so a birth plan is a great way to communicate the sort of birth you are hoping for so that she can try and make sure that you achieve it. If you are at a loss what to write then the NHS has put together a birth plan template which may be a good starting point.

You're now 37 weeks pregnant but what should you expect? Read week 37 of our week by week pregnancy guide to find out everything you need to know...

Here's a round up of the most important facts for when you're 37 weeks pregnant...

Symptoms at 37 weeks pregnant

Got a sudden urge to bake a cake, clean the kitchen cupboards, or to clear loads of stuff to the charity shop? That'll be your nesting instinct. Instead of gathering twigs, you're setting your house in order in readiness for your new arrival. You may swing from feeling very tired to having sudden bursts of energy.

Fetal development at 37 weeks pregnant

Your baby will now measure about 47cm, weigh 6lbs and is considered full term, so could be born at any time -eek! Most of the slippery vernix that coated and protected their skin will have washed off, but they'll have enough left to help them slide down the birth canal.

Australian researchers suggest it's the baby who kick-starts labour. Lack of space makes him produce stress hormones which trigger a chain of biochemical reactions...which eventually trigger labour.

In week 37 of your pregnancy the baby's head normally engages. This means their head will move down towards your pelvis ready for the birth.

The changes you should make at 37 weeks pregnant

It's a quiet week for hospital appointments so make some salon appointments instead. You might want to treat yourself to a little pre-natal pampering as it's a great distraction and will help to relax. When the baby comes you may not have as much time for self-care so indulge a little now, maybe get your nails done or your haircut!

Do a big online grocery shop and get it home delivered. Make sure you stock up on plenty of tinned and packet goods, healthy snacks and a good supply of frozen meals for the first weeks at home with your baby... and don't forget the nappies!

Don't leave anything to chance. Practice your drive to the hospital in rush hour and at weekends. You don't want to be caught unawares by any temporary lights or road works...

You're now 22 weeks pregnant but what should you expect? Read week 22 of our week by week pregnancy guide to find out everything you need to know...Looking for a pregnancy week by week guide? You're in the right place, and here we get into the details of being 22 weeks pregnant..

During this stage you'll probably be showing quite a bit and have told your friends and relatives so it's only natural that you'll want to know everything about your stage of pregnancy. That's why we've put together this handy guide...

Symptoms at 22 weeks pregnant

You've gained around 12-15lbs, but may feel sexier than ever. A third of women say they feel more sensual during months four to seven and have more powerful orgasms. Equally it's perfectly normal to go off sex during pregnancy. Don't worry, your sex drive will return.

Backache can be a problem for some mums-to-be and it's no great mystery why. Not only has your centre of gravity changed, but the ligaments in your body have become softer and stretchier in order to limber up for labour. This can put a strain on the joints of your lower back and pelvis. Some women find a maternity support belt helpful.

Fetal development at 22 weeks pregnant

Your baby is roughly 27.8cm and weighs 430grams. They have fat to keep them warm and their brain is growing rapidly. Their eyes, eyelids and eyebrows are now fully developed. Their vocal cords are beginning to function, as are their reflexes meaning they can hiccup, grasp things and even startle at loud noises outside the womb. If your baby is a girl then her uterus will have formed by now. If it's a boy then his testes will begin to descend and he'll start producing testosterone.

The changes you should make at 22 weeks pregnant

Some women will have an amniocentesis this week.

If you are expecting twins that share a placenta then you will have another growth scan and antenatal appointment this week.

Are you getting all the benefits you're entitled to? You may be eligible for help towards travel costs to hospital for antenatal care (including petrol or taxi fare) and a Sure Start Maternity Grant for £500. Go to direct.gov.uk for more information.

Feeling a bit absent-minded and muddle-headed? Well it does seem that pregnancy can leave you quite literally lost for words. In one study carried out at the University of California, it was found that pregnant women started to perform less well in verbal memory tests after 29 weeks of pregnancy.

You're now 23 weeks pregnant but what should you expect? Read week 23 of our week by week pregnancy guide to find out everything you need to know...

Now that you're 23 weeks pregnant your baby will begin to dream, and you'll feel it moving around. And there are lots of other changes too, including how you'll be feeling. Here's a run down of everything you need to know in your 23rd week of pregnancy...

Symptoms at 23 weeks pregnant

Your heart is working harder than ever, pumping six litres of blood around your body every minute. You may find yourself suffering from mild headaches and could also be more out of breath. If so, these can be treated safely with paracetamol. However, a persistent headache that lasts for several hours and doesn't respond to pain killers should always be taken seriously, particularly if it is accompanied by vision problems and/or a sudden swelling of hands, face and feet. This could be a warning sign of a potentially life threatening condition of pregnancy known as pre-eclampsia.

Fetal development at 23 weeks pregnant

Your baby is 28.9cm long and weighs 501 grams. Their proportions are similar to a newborn, but their skin is wrinkly and covered in a very fine downy hair called lanugo which usually disappears before birth. Blood vessels in the lungs are developing, the bones of the middle ear are beginning to harden and the fingernails are fully formed. From this point onwards babies seem to start dreaming. Researchers have observed rapid eye movement sleep in unborn babies as early as 23 weeks. Quite what they are dreaming about remains a mystery...

The changes you should make at 23 weeks pregnant

If you are eager to have a home birth but don't know how to go about it, visit homebirth.org.uk for guidance and practical advice. If having continuity of care is important to you then you may want to consider employing a private independent midwife to take care of you during pregnancy, to deliver your baby at home and support you after your baby is born. A complete package of care from an independent midwife can cost between £2,000 and £4,500. For more information go to independentmidwives.org.uk.

Fingers can swell up a bit in pregnancy so now might be a good time to remove your rings before you find yourself sobbing over a butter-smeared wedding ring.

Did you know...When anaesthetics were first discovered in the early 1900s the reigning board of obstetrics at the time ruled against their use in labour on the grounds that it was women's path in life to feel pain!

At 17 weeks pregnant your baby has been growing for a while, and they'll be doing a lot of wriggling around now. Here's what you have to look forward to at this precious time of your pregnancy. 

Symptoms at 17 weeks pregnant

Your uterus can now be felt above your belly button and you may notice a thin dark line appearing between your belly button and pubic bone. This is called the linea nigra (black line in Latin). About two thirds of mums-to-be will experience this and it is likely to be more noticeable if you've got darker skin.

This strange line is all part of the hyper pigmentation brought about by pregnancy hormones. These same hormones can cause a darkening of your nipples and, for some women a darkening of the skin across their nose and cheeks.

This is known as the butterfly mask of pregnancy, or, to give it its official term, chloasma. If you do experience this then always make sure you use a high factor sun cream otherwise it is likely to darken further.

It's possible you could start experiencing some itching skin during your pregnancy which is caused by the increased bloody supply to your skin or because of the stretching of your skin. Wear loose fitting clothing, avoid synthetic fibres and keep your skin moisturised to try and combat it.

Fetal development at 17 weeks pregnant

Your baby is 13cm long and weighs 140 grams. Fat is beginning to grow and their lungs are starting to exhale amniotic fluid. Their legs are now longer than their arms and they're wriggling around all the time doing acrobatics in your womb. Babies this age have even been seen via ultrasound playing with their umbilical cords.

Research also suggests that at 17 weeks your baby is already taking language lessons. While they can't understand words, they're already becoming attuned to vocal rhythms and patterns. Amazingly, this information allows them to tell the difference between languages from birth. Studies have shown that a two-day-old infant shows a preference for his mother's native tongue, even when spoken by unfamiliar voices.

The changes you should make at 17 weeks pregnant

You could have the Quadruple Test this week and some women will have an amniocentesis this week, too. 

Now that your energy levels have recovered, why not enrol in an antenatal exercise class? Exercising safely during pregnancy will keep you healthy and active as well as helping to prepare you for labour. There are plenty of exercise classes available which are tailored for specifically for pregnancy ranging from yoga to aqua-natal classes. The NCT runs ‘Relax, Stretch and Breathe Classes' and ‘Yoga for Pregnancy Classes'. Or you could try some pregnancy yoga classes online. 

If you fancy a holiday abroad, go now. After 28 weeks most airlines will ask you for a doctor's letter before flying with pregnant. After 34 weeks many will refuse to let you take that flight.

It may seem hard to believe, but if your partner has been complaining of similar pregnancy symptoms, he might not be exaggerating. Some expectant dads do suffer from sympathetic pregnancy symptoms. There's even a special word for the condition known as ‘couvade'.  In fact one study, conducted at St. George's Hospital, found that the majority men questioned displayed a variety of pregnancy-associated symptoms like mood swings, prenatal depression, morning sickness, with pregnancy cramps being the most commonly reported.

Further advice and information:

• Visit the NHS for more pregnancy week by week advice 
• Download a pregnancy tracker app
• View all our pregnancy week by week guides

You're now 31 weeks pregnant but what should you expect? Read week 31 of our week by week pregnancy guide to find out everything you need to know...

 weeks pregnant you'll start to feel more tired, so it's important you rest whenever you can. There are a few other things to think about too, like how your baby is developing and what the potentially harmful things are to look out for. Here's everything you need to know...

Symptoms at 31 weeks pregnant

Your uterus has grown to almost 500 times its original size. You'll be feeling more tired now, so get sleep when you can. You may feel a bit breathless as your baby is taking up so much space.

You may find yourself having a few Oops! moments. It's quite common to leak urine in the later stages of pregnancy - condition known as stress incontinence. It is caused by your baby exerting pressure on your pelvic floor - the hammock of muscles that supports your womb and bladder.

Your heart actually gets bigger during pregnancy as it copes with the demands of pumping all that extra blood around your body. Your heartbeat increases by 15 beats a minute and your heart pumps out seven litres of blood a minute instead of its normal five litres. What's more your heart also moves to the left and rotates slightly as it makes way for your expanding womb.

From any time onwards from now you make experience Braxton-Hicks contractions. These will last around 25 seconds and will prepare you for what labour is like...

Fetal development at 31 weeks pregnant

Your baby now measures about 40cm and weighs about 3lbs. They are becoming plumper and have laid down an impressive 2oz of fat. It may not sound much, but that figure represents 3.5% of their total body weight. By the time they are born, fat will represent 15% of their body weight (compared to 27% in an average-sized woman). From this point onwards they will carry on putting on weight, but the overall growth spurt will slow. You can no longer see the tracery of blood vessels beneath their skin, or the shadowy images that are their growing bones. Their lungs have yet to fully mature and their brain development is still on overdrive. Your baby can now tell light from shade and will be able to recognise your voice as well as any one you spend a lot of time with.

The changes you should make at 31 weeks pregnant

First-time mums-to-be will have more routine antenatal appointments than mums who have already had one or more uncomplicated pregnancies. A check-up at week 31 is one of them. Your midwife will measure your blood pressure and test for protein in your urine. She will measure and plot your symphysis-fundal height to check how your baby is growing.

Most pregnancy niggles and discomforts are annoying but harmless. Occasionally, symptoms may be more serious. Always contact your midwife, GP or hospital at once if you experience any of the following:

• Bleeding from the vagina
• Severe swelling of hands, legs and/or face
• Severe or persistent headaches
• Blurred or disturbed vision - for example spots, flashes of light or dimness
• Sharp or prolonged pain in your abdomen
• Chills and/or fever
• Extreme itchiness, particularly on hands and feet
• Noticeable lack of fetal movement

You're now 28 weeks pregnant but what should you expect? Read week 28 of our week by week pregnancy guide to find out everything you need to know...

You're nearly at your third trimester and it's a good time to start thinking about your labour, and who you'd like to be there. You may want to consider hiring a doula to support you and your partner in labour. Doulas are trained professionals whose job it is to support a mother during labour. The NCT has a network of trained doulas.

Symptoms at 28 weeks pregnant

You may have stretch marks now and other uncomfortable symptoms of later pregnancy including puffy ankles, leg cramps, varicose veins and piles. Try eating your way back to comfort. For example, celery and watercress can help combat swollen ankles, high calcium snacks (such as cheese and yoghurt) can reduce leg cramps and red berries (including raspberries, blueberries and blackberries) can ease piles and varicose veins.

You may notice that you have a heavier milky vaginal discharge which is white and mild-smelling. This is perfectly normal part of pregnancy and is known as leucorrhoea. If you are experiencing increased vaginal discharge then panty liners will help keep you feeling fresh and dry.

Fetal development at 28 weeks pregnant

Your baby now weighs about 900g and is growing rapidly, laying down fat for energy in preparation for labour. Their breathing system is developing and their lungs are developing air sacs known as alveoli.

If you're expecting twins then this is the point at which their growth rate slows down compared to that of single babies. Your baby is able to blink and respond to external sounds. Try playing different music to see how they react...

The changes you should make at 28 weeks pregnant

During your routine antenatal appointment your midwife will carry out her usual checks. She will take your blood pressure, test your urine for protein and measure and plot your symphysis-fundal height. As well as this, you'll be offered a blood test to check to see whether or not you are anaemic. You may be offered iron supplements if your haemoglobin level is below 10.5 g/100 ml.

If you have Rhesus-negative blood and your baby has Rhesus-positive, you'll be offered an Anti-D injection. Most people are Rhesus-positive, but where women have a different blood group from their baby, their immune systems can react against her baby's blood by producing anti bodies. This can cause problems with subsequent pregnancies.

Antenatal Appointment and Growth Scan for Twins or Multiples If you are expecting twins then you will have another antenatal appointment and growth scan this week.

Who do you want to be with you at the birth? Most women want their partner with them but if your man is worried about being the only person in attendance, then you may want to consider having your mum, sister or close friend to offer back-up support. Research has shown that women who have continuous support in labour are more likely to have shorter labours, less likely to use pain relief and are more likely to be satisfied with their birth.

A study involving around 1,400 women found that among those who had a vaginal delivery, those who'd done pelvic floor exercises in the last three months of pregnancy were the least likely to suffer from stress incontinence.

You're now 38 weeks pregnant but what should you expect? Read week 38 of our week by week pregnancy guide to find out everything you need to know...

In these final weeks of pregnancy, it's time to chill a bit and look after yourself in this precious 'me time' you have left. Try some deep breathing exercises in preparation for the birth and make sure you're eating well and drinking lots too.

If you're expecting twins then your obstetrician may want to induce you this week. 38 weeks is considered term for twins. Otherwise, you probably have a couple of weeks left. Here's everything you need to know about being 38 weeks pregnant...

Symptoms 38 weeks pregnant

Have you tried measuring your middle? In pregnancy the average woman's waistline stretches from 27-28in to 40-42in and at 38 weeks pregnant you'll probably be feel as big as you ever will.

And, did you know that during your nine months of pregnancy you use 87,000 calories? So you might feel hungry and tired, too.

Fetal development 38 weeks pregnant

Your baby now measures 48cm and weighs about 6lbs 8oz. All their body systems are developed and they'll just be waiting to make his their into the world.

The changes you should make 38 weeks pregnant

Your midwife should give you information about what happens if your pregnancy lasts longer than 41 weeks. She will check the size of your abdomen, measure your blood pressure and check for protein in your urine.

Both of you should add all of the important phone numbers to your mobile. That way you won't have to dig out your hospital notes and risk leaving them behind when you head for the hospital. Include the number of your community midwife, the labour ward, ambulance control, your GP and all your babysitters.

If you have other children, reassure them about who they'll be looked after by when you're having the new baby. They'll be excited too, so be careful they don't feel left out. You might want to ask them to help you get the baby's bed ready or let them choose a gift for them.

If you're 13 weeks pregnant we've got everything you could want to know right here. Don't forget to check out our full pregnancy week by week guide for previous and future weeks too...

Congratulations! You've now officially entered your second trimester and hopefully life will start to get a little easier. The second trimester is the phase of pregnancy that many women love the most. Ready to know more? Here's an overview of what you need to know about being 13 weeks pregnant...

Symptoms at 13 weeks pregnant

This is the period when that bloom of pregnancy becomes a reality. It's the phase in which you don't just feel pregnant, you begin to look it as well. Last week your uterus moved up out of your pelvis and could be felt above your pelvic bone. This means you may now notice a little baby bump starting to form and you should expect it to grow rapidly over the next few weeks. Suffering from pregnancy heartburn? Try eating ripe papaya - it's said to work wonders.

Fetal development at 13 weeks pregnant

Your baby is roughly the size of a peach and they weigh around 23 grams. During this week your baby's face starts to look more recognisable because the eyes, which started out at the sides of the head, have moved closer together and the ears are now almost in the right position, too.

The liver and kidneys have also started to function. Bone has begun to replace cartilage and although you won't feel it yet, your baby's reflexes are starting to develop and they are already flexing their little arms and kicking their tiny legs. Your baby already has unique fingerprints, and if you're having a girl she already has around two million eggs in her ovaries.

The changes you should make at 13 weeks pregnant

The earlier a dating scan is carried out the more accurate it is likely to be. However, if you were late finding out you are pregnant you will still be offered one at this stage.

There's still time to have a nuchal translucency scan if you wish to have one. This is the latest you can be offered a Chorionic Villus Sampling - a diagnostic test which looks for fetal abnormalities. After this you will be offered a different diagnostic test known as an amniocentesis. This can be carried out from Week 15.

Make the most of your final months together as a couple if it's your first child or take care to ensure your other children are prepared for their new sibling too. Now that you've got your spring back in your step why not treat yourself to a romantic break. The Americans call them Babymoons but remove the cheese factor and it's simply a last chance to enjoy a weekend away unfettered by bibs, bottles and baby buggies...

You're now 39 weeks pregnant but what should you expect? Read week 39 of our week by week pregnancy guide to find out everything you need to know...

The final weeks of pregnancy can feel long, but you'll have your new baby before you know it. Here are the last few changes you should be making before your bundle arrives, as well as the development your little one is making in the womb.

Symptoms at 39 weeks pregnant

You're probably feeling like you are about to pop as your uterus takes up all the space in your pelvis and into your abdomen, too.

Before labour starts, some women experience diarrhoea and vomiting. This is your body's version of a clear-out - diarrhoea is common before labour as the bowel is stimulated by prostaglandins. You may also get backache, similar to the type you may have with your period.

You may also find that your mucus plug is starting to come away. This sealed your cervix during pregnancy and it will now loosen as you prepare for your baby to arrive. It will looks like a jelly-like substance and could be clear or slightly pink. It may also be slightly streaked with blood and could come in a single piece or in several blobs of gel.

Fetal development at 39 weeks pregnant

Your baby is about 49cm and weighs just over 7lbs and is very, very snug in your uterus. The umbilical cord is now 51cm long. Your baby is continuing to build up their own immunity that will carry on developing after birth.

Babies are born with more than 300 bones in their body. As they grow these bones fuse together and by the time they are fully grown they have just 200.

The changes you should make 39 weeks pregnant

When to go to the hospital is one of the things that mums worry about. If your contractions start but your waters haven't broken and you live near the hospital, wait until they're strong and about five minutes apart, lasting about 60 seconds before going in.

Phone the hospital before leaving home and remember your notes or card. If you're having a home birth, ring your midwife if your waters break, or when your contractions get strong.

Make sure your phones are constantly charged and keep a supply of coins in the car for the hospital car park. When you're in labour you don't want your partner fretting about getting a parking ticket.

You're now 29 weeks pregnant but what should you expect? Read week 29 of our week by week pregnancy guide to find out everything you need to know...

There's lots to think about at this stage - like how much you should be eating and the best ways to deal with any discomfort. You do need to eat for two in pregnancy but this doesn't mean eating twice as much. During the second trimester you only need an extra 300 calories a day. That's not a lot extra when you think that a banana and a 150g pot of Greek yogurt come in at around 270 calories.

With all that weight out front it's small wonder pregnant women aren't forever toppling over. The fact that they don't lies in our evolutionary past. A study at Harvard University looked at a group of pregnant women at different stages of their pregnancies. They found that the women corrected for their growing imbalance by bending backward in the lower part of their spine. Detailed anatomical measurements showed that the vertebrae of the lower back are more wedge-shaped in women than in men, which makes this bending easier. So, now you know that fun fact, here are the rest of the details about being 29 weeks pregnant that you'll want to know...

Symptoms 29 weeks pregnant

Do you wake up with pain in your hands at night? The chances are you're suffering from carpal tunnel syndrome. This is another common side-effect of pregnancy. It occurs when an area called the carpal tunnel in the wrist becomes swollen and puts pressure on the nerve running through the fingers. The pain can spread up your arm and down through your fingers, and is often worse at night. If you do wake up with pain in your hands, dangle them over the side of the bed and shake them vigorously. If they're still painful, ask your GP if a wrist splint might help.

You may also find that you've turned into a bit of a clumsy klutz. Your centre of gravity has changed and you may find yourself a bit off balance so do take care when going up and down the stairs.

Fetal development at 29 weeks pregnant

Your baby is 38cm and weighs around 2lbs 4oz. They are small, but perfectly formed. Their head is now in proportion to their body and they look very similar now to when they'll be born. Their brain is growing quickly, pushing the soft skull bones out. Nerve cells are increasing so the brain is working faster and controlling body temperature and breathing. The organs will be growing rapidly too.

The changes you should make at 29 weeks pregnant

If you want to, you can start your maternity leave and pay this week provided you have given the right notice. However, you may wish to work nearer to your due date in order to have more time at home with your baby after the birth.

If you're unemployed, your Maternity Allowance or Statutory Maternity Pay will start this week if you qualify, so make sure you have put in a claim. If you've been claiming income-based Job Seekers Allowance you'll now be entitled to claim Income Support instead as you no longer have to sign on and show you are seeking work.

If you are claiming benefits you may be eligible for a maternity grant of £500 to help you with the costs of your new baby. The earliest you can claim is now, the latest is when your baby is three months old. You cannot usually claim if you already have a child under 16 in your home. To find out whether or not you are eligible, go to gov.uk.

Congratulations! You've reached the end of the road when it comes to your pregnancy week by week guide - well, maybe...

Pregnancy normally lasts about 40 weeks (that's 280 days from the first day of your last period), but only a fraction of babies arrive on their estimated due date. It can be dispiriting when your due date comes and goes without so much as a twinge, let alone a contraction, but try to keep busy and active! Here's everything you need to know when it comes to being 40 weeks pregnant...

Symptoms at 40 weeks pregnant

As your body prepares for labour your ligaments become very soft to allow your pelvis to expand. Your cervix also softens and thins and your placenta is now the size of a large dinner plate, 2-3cm thick and weighs a whopping 1lb 8oz.

Did you know, at the end of pregnancy much of the weight gained is roughly made up of the following:

• Your baby - 7lbs 5oz
• Extra blood - 3lbs
• Larger breasts - 1lb
• Enlarged uterus - 2lb 2oz
• The placenta - 1lb 8oz
• Amniotic fluid - 2lb 2oz
• Retained water - 3lb 5oz

Fetal development at 40 weeks pregnant

Your baby is now about 50cm long and weighs about 7lbs 1oz. They are nearly 200 times heavier tan they were at 12 weeks!

If you do go into labour now the delivery process will kick-start their heart and respiratory system so they can live and breathe on their own.

The changes you should make 40 weeks pregnant

Go for a routine antenatal appointment.

Your midwife or doctor should give you more information about what happens if your pregnancy continues beyond 41 weeks. She will check the size of your abdomen, measure your blood pressure and test for protein in your urine.

If your pregnancy lasts another week then you may be offered a sweeping of the membranes. A sweeping of the membranes is a method used to kick start labour and is usually tried before you are taken down a formal induction route. Your midwife puts her finger into the cervix to gently separate the bag of amniotic fluid from the side of the uterus near the cervix.

Once this separation has occurred, hormones are released which will hopefully encourage the natural onset of labour over the next day or so.

You're now 24 weeks pregnant but what should you expect? Read week 24 of our week by week pregnancy guide to find out everything you need to know...It's time to get excited, for this week's pregnancy week by week guide we're looking at just over the half way point!

Now that you're 24 weeks pregnant you might want to start thinking about arranging things like your maternity leave and your birthing plan. Here we round up everything you need to know about your 24th week...

Symptoms at 24 weeks pregnant

The measurement in centimetres (from the pubic bone to the top of your bump) should be roughly the same as the number of weeks you are pregnant, but this isn't an exact science so don't worry if it's a few centimetres out.

Stretch marks can start appearing at any time during your pregnancy, but this is the peak period, so keep slathering on the moisturiser. While there's no evidence to support the claim that lotions and potions will prevent stretch marks, many mums are convinced that regular moisturising throughout their pregnancy helped keep these maternal battle scars at bay. Kim Kardashian fended off stretch marks with Bio Oil and it's thought Meghan Markle is a fan too. You might also want to consider Palmer's Tummy Butter for Stretch marks.

Alternatively, try massaging a rich oil such as wheatgerm, vitamin E or apricot kernel into your tummy, breasts, upper thighs and hips each day.

Fetal development at 24 weeks pregnant

Your baby is between 27cm and 30cm long and weighs just under 600grams. If they're born this week the birth would be considered 'viable' which means they'd have a 44% chance of survival. They're starting to run out of room to roll so may start kicking more. You may find they're at their most active in the afternoon and evening but will also notice periods of inactivity when they've dozed off for a bit. These sleep periods tend to last between 20 and 40 minutes, and are rarely longer than 90 minutes.

The changes you should make at 24 weeks pregnant

In order to qualify for maternity leave and pay, you must tell your employer that you are pregnant by the 15th week before your baby is due. It is best to put this in writing. You should also tell them the date on which you want your maternity leave to start. You'll also need to provide your medical certificate (MATB1) which will give your expected due date.

Your midwife should already have given this to you. Once you've notified your employer they must write to you within the next 28 days to tell you the date when your maternity leave runs out and you are expected back at work.

If you are expecting twins then you will have another antenatal appointment and growth scan this week. A difficult subject to consider, but this is the legal cut off point for a termination, should diagnostic test results reveal that you are carrying a baby with foetal abnormalities. Of course, not all women in this situation will decide to end their pregnancies. Antenatal counselling will be offered to any couple finding themselves in this position.

To calculate the start of the 15th week before your expected week of childbirth, find the Sunday before your baby is due (or the due date if it is a Sunday) and count back 15 Sundays from there. Your partner also needs to do the same in order to qualify for paternity leave.

Pregnant women can develop skin tags! These are perfectly harmless dangly growths of skin which most commonly appear on your neck or armpits. If they really bother you they can be easily dealt with after your baby is born.

Wondering what being 14 weeks pregnant entails? When you're expecting it's understandable you'll want to know that everything you're experiencing is normal. Here's a round up of everything you need to know at this precious time.

Symptoms at 14 weeks pregnant

Believe it or not that glow of pregnancy isn't a myth. As your baby bump starts to appear suddenly you start to blossom and bloom. Hair changes in pregnancy means it can become thicker, more luscious and shiny, skin looks plump and radiant and you give off a feeling of health and wellbeing.

The reason for your luscious locks is that during pregnancy you shed less hair than normal. The downside is that a surge in pregnancy hormones can mean an unwelcome increase in facial and body hair. Waxing, tweezing and shaving are all safe ways to eliminate unwanted hair but steer clear of permanent solutions such as electrolysis which can cause a darkening of your skin.

Fetal development at 14 weeks pregnant

While the first trimester was all about rapid development, the second is all about rapid growth. Your baby's now about 8.7cm and weighs around 43 grams. Their body is starting to grow fine downy hair known as lanugo which will continue to grow until 26 weeks (this is usually shed before birth.) The purpose of lanugo is to protect your baby's delicate skin and to provide some extra insulation while they build up some body fat. Their bone is continuing to harden and his kidneys are producing urine which means they're peeing into the amniotic fluid.

The changes you should make at 14 weeks pregnant

Even if you were late discovering you are pregnancy, there's still time to have a dating scan, so now's the time to do that. The very latest you can have a nuchal scan is at 14 weeks and one day. After this you will be offered a blood test known as the Quadruple test to screen for abnormalities.

If it hasn't been possible for you to have the combined screening test in early pregnancy, then you'll be offered a special blood test between 14 weeks, two days and 20 weeks and six days. This test is sometimes called the Quadruple Test, and measures four proteins associated with pregnancy. This information is combined with your age and used to work out your individual chance of having a baby with Down's syndrome and Spina Bifida.

If your risk is above one in 150 then you will be offered an amniocentesis which will give a definite diagnosis. This can be carried out between 15-20 weeks of pregnancy. The Quadruple Test may also be offered to women who have already had the Nuchal Scan/Combined Test and been identified as having a high risk of abnormalities before they decide whether or not to have further diagnostic tests.

One simple change to make to keep you feeling healthy during pregnancy is to drink plenty of water. The European Food Safety Authority recommends that women should drink around 1.6 litres of fluids a day (the equivalent of eight glasses a day). During pregnancy this rises by another 300ml. And it is definitely worth heeding their advice.

A good supply of H20 will help keep constipation at bay as well as helping to prevent piles and urine infections. Drinking more water can also help with puffy feet and ankles, while staying hydrated means you are less likely to suffer from headaches.

Also, drinking a glass of milk a day throughout pregnancy can give your baby a head start, quite literally. Studies have already found that drinking milk could boost your baby's IQ. Now a new study has found that a glass of milk a day during pregnancy can make also make your children taller - a height advantage that lasts right through their teens and into adult life.

At 14 weeks pregnant it's still considered say to fly. If you are considering a trip it's still worth chatting with your GP, especially if you've experienced any spotting during the pregnancy or you've had high blood pressure, excessive morning sickness or diabetes.

You might want to consider starting some pelvic floor exercises so that you lower the chances of experiencing incontinence throughout your pregnancy. Try incorporating them into your everyday routine like when you're waiting for the kettle to boil or watching TV.

Further advice and information:

• Visit the NHS for more pregnancy week by week advice 
• Download a pregnancy tracker app
• View all our pregnancy week by week guides

You're now 34 weeks pregnant but what should you expect? Read week 34 of our week by week pregnancy guide to find out everything you need to know...

At this point in your pregnancy, week by week, you'll no doubt start to feel more tired and a little uncomfortable - that's normal.It's also time you start preparing for the hospital runs that may occur in the next few weeks. We've put together the following guide so you can know exactly what to do, when.

Symptoms at 34 weeks pregnant

If you suddenly find a tiny foot jammed uncomfortably into your abdomen or just under your ribcage, try rubbing it firmly and asking your baby to please move it. You may be surprised to find that they will. It's not uncommon at this late stage of pregnancy to find that nausea makes an unwelcome return. Small, frequent meals should help.

Fetal development at 34 weeks pregnant

Your baby measures about 43cm and weighs nearly 4lbs 8oz. They are developing an immune system as up to this point they've been solely reliant on yours.

Around 3-4% of babies will be in the breech position where their bottoms or legs lie towards the birth canal instead of being head down. Your doctor may recommend trying an 'external version' where they encourage your baby to turn through manual manipulation, or a caesarean may be suggested. You may want to deliver your baby in the breech position, although there are some risks attached.

Did you know life in the womb can be pretty dull at times? Unborn babies have been captured on ultrasound having a yawn.

The changes you should make at 34 weeks pregnant

Your midwife will measure your blood pressure and test for protein in your urine at your 34 week antenatal appointment. She will measure and plot your symphysis-fundal height and give you specific information about labour and birth, including your birth plan, recognising the signs of labour and coping with pain. Women who are rhesus D-negative may have a second dose of anti-D prophylaxis.

If you're having twins and they share a placenta then you will have another growth scan this week, alongside your routine antenatal appointment.

If you have an older child you'll need to plan carefully for his needs when you go into labour. Your partner could be at the hospital with you for ten hours or more so you'll need to find someone your child is happy to be left with and someone who can come to the house during the night if necessary. Line up friends and relations now and use these final weeks to try leaving your child with them for an hour or so to check that he's happy with the arrangement.

Eager to avoid stitches? Well there is something you can do about it. Research has shown that massaging your perineum from Week 35 onwards means that you are less likely to need an episiotomy or suffer a perineal tear.

You're now 35 weeks pregnant but what should you expect? Read week 35 of our week by week pregnancy guide to find out everything you need to know...

You might begin to feel a little uncomfortable, which is normal, so we've put together a guide on what to expect and how to relieve your symptoms if you do start to feel breathless. Here's everything you need to know...

Symptoms at 35 weeks pregnant

You may be feeling breathless as your baby presses into your diaphragm. Ease it by kneeling down on all fours, with your arms at shoulders' width, to free up precious breathing space. You'll notice your Braxton Hicks ‘practice' contractions becoming stronger and making your bump feel hard for a few seconds at a time as they work to tone your womb in preparation for labour.

Your pelvic joints expand thanks to the pregnancy hormone, relaxin, kicking in, along with the weight of your baby.

Some women experience leaking breasts during late pregnancy. To avoid any embarrassing damp patches, invest in some breast pads.

If you have a severe headache, sudden swelling or feel very unwell, call your midwife. It may be a sign of a serious and potentially life-threatening condition of pregnancy known as pre-eclampsia.

Fetal development at 35 weeks pregnant

Your baby is around 45cm and weighs 5lbs. Your baby's digestive system is now developed, as is their central nervous system. Most babies that are born now are likely to survive with no major problems.

In 96% of cases your baby's head will now be engaged. If you're expecting twins then normally one will be engaged and the other will fit around it.

Your unborn baby is having sweet dreams! Babies spend 60% of their last three months in the womb in REM - the rapid eye movement phase of sleep which indicates dreaming. It is thought this encourages brain development.

The changes you should make 35 weeks pregnant

Be well prepared! Pack two hospital bags. Even if you're planning a home birth you may end up in hospital. Have one for the labour with facial wipes, drinks, glucose energy tablets, a maternity bra, pads, disposable pants and a babygro for the baby. And one for after your baby is born with changes of clothes for you and the baby, front-opening nighties, nappies, toiletries etc. Keep them by your front door.

Group B Strep (GBS) is a bacteria commonly found inhabiting the human digestive system (and often the vagina of adult women). It is normally harmless, however, it can be passed to newborn babies around childbirth, and in babies who then develop GBS infection, it can be very serious. There is no routine testing for GBS in the UK, but you can arrange a private test. For more information and advice go to Group B Strep Support.

As you progress into your fourth week of pregnancy you may notice some subtle changes in how you feel. 

To put your mind at rest that everything you're experiencing is normal we've put together a guide on all the usual signs and symptoms of being 4 weeks pregnant, as part of our pregnancy, week by week guides. 

Symptoms at 4 weeks pregnant

You probably won't be feeling any different physically just yet, but studies show around 15-25% of women will experience some light spotting as the fertilised egg implants. This is known as implantation bleeding. It can last for a few days and can be mistaken for a light period. Don't worry, though, any doubts about your dates will be cleared up with your dating scan which happens between weeks 8 and 14 of pregnancy.

It's completely normal to feel a little anxious at the start of your pregnancy - your body is undergoing a huge change after all. Be sure to speak to your family and friends as much as possible and reading up on your pregnancy week by week will help you understand the changes you are experiencing.

Fetal development at 4 weeks pregnant

The fertilised egg bundle nestles into the lining of your uterus which then grows protectively over the bundle. The placental tissue begins to produce the hormone HCG which is the hormone detected during a pregnancy tests. For the impatient among you there are early pregnancy tests on the market (available on Amazon) that are able to detect this pregnancy hormone before your period. 

Your unborn baby's so tiny it could fit on the head of a pin at the moment! By the time it reaches the uterus, the rapidly dividing ball of cells - now known as a blastocyst - has separated into two sections. The inner group of cells will become the embryo. The outer group will become the cells that nourish and protect it. The placenta, which will nourish your baby throughout the pregnancy, also begins to form.

Things to consider at 4 weeks pregnant 

When trying for a baby you may not know that you are pregnant for several weeks after conception. So even before that positive test result, follow the guidelines for healthy eating in pregnancy and familiarise yourself with foods to avoid as they may pose a risk to your growing baby.

It's recommended you take a daily 400mcg folic acid tablet (available from Amazon) from now and continue taking it up to week 12 of your pregnancy. This will significantly reduce the risk of your baby having spina bifida or other neural tube defects.

Further advice and information:

• Visit the NHS for more pregnancy week by week advice 
• Download a pregnancy tracker app
• View all our pregnancy week by week guides

Being 7 weeks pregnant is an exciting, yet tense time for many. 

While this is an exciting time for you and your family, anxieties regarding a miscarriage may also be playing on your mind. These concerns are completely normal during your seventh week of pregnancy, so we've gathered together some vital information in this article. This is part of our general pregnancy week by week advice. 

Symptoms at 7 weeks pregnant

You're pregnant and happy but now the worries start to creep in. The first 12 weeks of pregnancy carry the highest risk of miscarriage, which is why, for many women, these early weeks of pregnancy can be a stressful time.

Around one in 10 women will experience some form of vaginal bleeding in the early stages of pregnancy, but this doesn't always mean there's a problem. However, once you've had a positive pregnancy test, there is around a one in five risk of having a miscarriage in the first three months and bleeding can be a warning sign of this.

If you're worried, visit your GP or midwife who will ask you questions about the bleeding and your pregnancy. They may carry out a vaginal examination as well as a urine pregnancy test and blood tests.

You may be booked for an ultrasound scan at your local Early Pregnancy Assessment Unit (EPAU). This is most likely to be a transvaginal scan where a probe is inserted into your vagina to take images of your womb. It is perfectly safe and will not cause miscarriage.

Fetal development at 7 weeks pregnant

Your baby's 9mm long, about the size of a blueberry. The big news this week continues to be organ growth and development. Intestines are developing, the heart chambers are forming and the hemispheres of the brain are growing. They even have an appendix and a pancreas, while their liver is busy churning out red blood cells.

Their umbilical cord, containing the two arteries and one vein that are their lifeline is supplying them with oxygen and nutrients through the placenta to which it is connected. Although technically still an embryo, dark spots can be seen where eyes are starting to form. There are openings for the nostrils and hollows where the ears will develop. Leg buds form and hands form as flat paddles on the arms.

Things to consider at 7 weeks pregnant

Pregnant women are entitled to free NHS prescriptions, but in order to claim them you'll need to fill in a form FW8 in order to get a maternity exemption certificate or card (Matex). Your doctor will give this to you at the start of your pregnancy. The good news is you also get free dental care.

If you think your work might pose a risk to your unborn baby, ask your GP to write to your employer asking for a health and safety risk assessment. The Health and Safety Executives guidance identifies the types of work that pregnant women should avoid.

These include:

• Manual handling of heavy loads
• Work at unsuitable workstations
• Your work may expose you to stressful or potentially violent situations
• Work in confined spaces
• Work involving exposure to lead

Further advice and information:

• Visit the NHS for more pregnancy week by week advice 
• Download a pregnancy tracker app
• View all our pregnancy week by week guides

Think you're five weeks pregnant? This guide outlines the most common symptoms while detailing how your baby is developing.

Being 5 weeks pregnant can be a confusing time, as you may start to experience symptoms that are similar to PMS. If you haven't already taken a test, now is a good time to get the confirmation you need - as you'll need to start paying particular attention to the foods you eat (and avoid). This advice is shared as part of our pregnancy, week by week guides.

Symptoms at 5 weeks pregnant

During your fifth week of pregnancy your breasts are likely to feel tender and you might also get PMT-like symptoms, but without any signs of your period. Chances are you'll also begin to feel queasy. Stock up on crystallised ginger. Ginger has excellent anti-emetic or anti-sickness properties. While it's not guaranteed to stop the symptoms of morning sickness, many pregnant women find it really helps. Keep a supply next to your bed and chomp a few chunks before you get up.

If you can't stand to wait any longer to get clarification as to whether or not you're pregnant then the good news is that most home pregnancy test kits claim 99% accuracy when used one day after a late period.

Fetal development at 5 weeks pregnant

The fifth week of pregnancy is the start of the embryonic period. By the end of this week your baby's only the size of the point of a peppercorn and yet their tiny heart has started to beat. Major organs, including the kidneys and liver, begin to grow and limb buds begin to sprout - these will develop into arms and legs. Facial features are also beginning to form.Your baby's digestive tract and nervous system is also starting to form.

Changes to consider at 5 weeks pregnant

There are a few foods you need to avoid during pregnancy in order to safeguard your growing baby. Steer clear of liver products, such as paté, as it contains a lot of vitamin A, which may cause problems for the development of your baby. You are also advised to stop eating shellfish and soft cheeses.

You should be especially careful about avoiding any foods that might be off, of handled carelessey. This is because some bacterial infections that can be caught from food such as listeriosis and salmonella can harm your unborn baby.

Pregnancy milestones in each trimester

We've put together this handy pregnancy milestones one-pager, so you can download it and take a screen-shot on your phone.

Further advice and information:

• Visit the NHS for more pregnancy week by week advice
• Download a pregnancy tracker app
• View all our pregnancy week by week guides

Looking for a pregnancy week by week guide? This handy round up contains everything you need to know about being 10 weeks pregnant.

It's a mixed bag this week of pregnancy, with strange dreams featuring. But it's all for a good cause because your baby now has fingers and toes at 10 weeks. Do you dream of giving birth to a furry animal or forgetting your baby at the shops? Don't worry, you're not losing your marbles. Studies have found that around 70% of women have frequent pregnancy-related dreams. Here's what's happening when you're 10 weeks pregnant...

Symptoms at 10 weeks pregnant

The usual complaints of early pregnancy such as morning sickness and fatigue persist, but around this point in pregnancy you may also find constipation becomes bit of a problem.

This is the result of pregnancy hormones causing your bowel muscles to become sluggish and lazy. There's plenty you can do to keep things moving. Just make sure you drink plenty of water and eat a diet which has plenty of fibre such as wholegrain breads and cereals. Unfortunately, another unpleasant and embarrassing side effect of pregnancy is flatulence.

Fetal development at 10 week pregnant

Your baby's face is well formed. Eyelids are more developed and the outside of tiny ears are starting to properly form on either side of their head while inside the ear canals are forming. Your baby's little face now has an upper lip and two tiny nostrils have appeared in their newly formed nose.

The jawbones are developing and, amazing as it may sound, they already contain all of your baby's future milk teeth. They can even make a little fist with their fingers. Your baby is roughly 4cm long.

Change you should make at 10 weeks pregnant

You may have your booking in appointment this week, and possibly a dating scan too. Some women may have a diagnostic test known as Chorionic Villus Sampling (CVS) this week. Ten weeks is the very earliest point at which it can be carried. It more usually occurs between 11-14 weeks.

At this early stage it is too early to have had screening tests for Down's Syndrome, so those women being offered a CVS will be those with a family history of cystic fibrosis or muscular dystrophy, or those women for whom an earlier blood screening test has identified as having a high risk of having a baby with sickle cell anaemia or thalassaemia.

CVS can be conducted in one of two ways. A sample of cells called chorionic villi cells will be taken from your placenta either via a needle which is inserted through your abdomen, or via a tube inserted through the neck of the womb.

The procedure takes about five minutes, and because this is an invasive test it does carry a small risk of miscarriage of around 1%. Because the chorionic villi come from the division of the fertilised egg they share the same DNA as your growing baby, including any possible genetic abnormality.

This means that any defect found in the sample of chorionic villi will also be present in the foetus.

Further advice and information:

1. Visit the NHS for more pregnancy week by week advice
2. Download a pregnancy tracker app
3. View all our pregnancy week by week guides

The first few weeks of pregnancy are a hugely exciting time. Find out what's happening while you're 1, 2 and 3 weeks pregnant.  

In your very early weeks of pregnancy there won't be much to physically see or feel, but it's nice to know what's going on none the less. In fact, you probably aren't even 'officially' pregnant at all in the first couple of weeks, but science tells us to count weeks of pregnancy from the first day of the last period. We've rounded up what to expect in your first three weeks, as part of our pregnancy week by week guides. 

1 week 'pregnant' - technically, you haven't conceived yet 

Your 40-week pregnancy is dated from the first day of your period even though you haven't conceived yet. Actual conception will take place around midway through the month and it won't be until you miss your period that you'll be able to find out for definite that you're pregnant, which is around week 5 or your pregnancy. As women ovulate at different times according to their cycle, dating your pregnancy this way gives carers a better idea of the due date. 

Your baby may just be 'a twinkle in their daddy's eye', but there are things you can be doing to make sure they're healthy. Eat a well-balanced, nutritious diet and start taking folic acid in pregnancy. It's recommended you take a daily 400mcg folic acid tablet (available from Amazon) from now and continue taking it up to week 12 of your pregnancy. This will significantly reduce the risk of your baby having spina bifida or other neural tube defects. 

A study by the University of Surrey found that a better diet and lifestyle can boost your chances of conceiving by up to 80 per cent. Common offenders for preventing pregnancy are caffeine, alcohol and nicotine, so try and kick these first. And remember that means your partner, too.

2 weeks 'pregnant' - ovulation begins  

If you have a 28-day menstrual cycle you'll usually ovulate around day 14 (whatever the length of cycle, most women tend to ovulate around 12-16 days before their next period.) Your egg will survive for 12-24 hours after it's released from the ovary, so fertilisation has to happen within this time. You can also test if you are ovulating by measuring your temperature as your increases in temperature by three degrees.

3 weeks pregnant - fertilisation occurs 

250 million sperm have gone racing to your egg. When your partner's sperm meets your egg the life of your new baby begins. Within 30 hours of conception the newly-fertilised egg, now known as a zygote, undergoes the first division to form two cells. This is the first of billions of divisions and changes that will take place within the first few weeks of pregnancy.

Right now you probably won't feel the monumental changes taking place inside. However, your amazing body has already switched into overdrive in order to create a friendly environment for the newly-fertilised egg.

It does this by producing a pregnancy protein known as Early Pregnancy factor (EPF), an immunosuppressant which will stop your body from rejecting your growing zygote, which is roughly 1cm long. At this point the dividing ball of cells is heading steadily along the fallopian tube towards the cavity of the womb. Once there it will implant by attaching itself to the wall of the womb. This journey to the womb takes about a week.

Some women start to feel pregnant around this time but there are some other early symptoms of pregnancy you should look out for.

Further advice and information:

• Visit the NHS for more pregnancy week by week advice 
• Download a pregnancy tracker app
• View all our pregnancy week by week guides

Having a baby is an amazing thing, and following your little one through their fetal development stages while you're pregnant is fascinating.

There's certainly lots to learn, so if you're interested in how your mini-me is growing then we've put together a guide to show you exactly how your baby is changing during their nine months inside your tummy.

From the first few weeks of fetal development, when your baby is technically a ball of cells, through their transformation to an embryo and right up until your little one's birth – this guide sees you through every week in confidence.

If you're having twins, we've included information on how they will develop, too, and the changes you can make to help give your baby (or babies!) the best possible support while they grow.

You'll learn all about how big your baby is growing during its fetal development stage, how much they weigh and all the things they're learning, too. There are some surprises along the way (like how early they get finger nails!) and some useful information on scans, check ups and appointments.

Click on the image below, depending on what pregnancy week you're currently in, to learn more…

Week by week fetal development guide

How far along are you? We love hearing all your pregnancy stories, so if you’re expecting then leave us a comment in the box below telling us how you’re feeling, what stage you’re at and any tips you’ve got for fellow mums-to-be!