Mum-of-two shows the size difference of her baby bumps when pregnant with a boy and girl

A mum-of-two has shared pictures showing the difference between her baby bumps with her first and second pregnancy, one of which was a boy and one a girl.

Bethany, a mum from Minnesota, USA, shared an incredible throwback looking at the difference in size of her baby bumps comparing her first and second pregnancy.

In the split image, Bethany stands side-on in both pictures to clearly show off the shape and size of her bumps. Despite the photos being taken pregnancies apart, the mum has also even handily dressed in similar outfits of sweat pants and a vest to make the comparison even more striking.

Bethany posted the snap when she was six weeks post-partum with her second child, reflecting on her time carrying her babies.

Although the bumps are different shapes and sizes, Bethany reveals that she gained the same amount of weight with both pregnancies and her daughter, whom she is pregnant with in the picture on the right, was even a pound heavier.

Bethany wrote, '#6weekspostpartum today so time for some reflecting.

'The left is #40weekspregnant with my son, and the right is almost #41weekspregnant with my daughter.

'I gained the exact same amount of weight with both pregnancies, 33 lbs and my daughter ended up being about a pound bigger than my son.'

Bethany continues to reflect on the different actions she took in her separate nine months being pregnant, to try and work out if there's any reasons behind the size in bump for her.

'With my son I ran my entire pregnancy until 37 weeks but didn't do any lifting. With my daughter, I lifted throughout and did some running on the side as well.'

'In pregnancy in general... It didn't make that big of a difference. My back and hips still killed towards the end.'

Bethany revealed that for her personally, she felt her recovery benefited from lifting weights and she believes it could have helped cut her labour time.

'But in recovery and labor it has made ALL the difference.

'My sons labor was 44 hours long and it took me the full 6 weeks to recover and to begin even walking again.

'With my daughter labor was 5 hours and it took me about 5 days before I felt normal again and ready to go, hence why I've been incorporating working out again.'

The mum, who likes to document her motherhood journey on social media, shared the snap with her 11k followers, many of whom shared their own theories.

One Instagram user commented with her theory that second pregnancies are easier as they are less of a 'shock' to your body, 'My first was a horrible labor and took six weeks before I felt close to normal. My second was a five hour labor mostly done at home. I was out of the hospital in 24 hours and felt great. Second baby is always easier because it's not a shock to your body it knows what to do.'

Another social media follower revealed that she did not exercise with either of her pregnancies but found her second one was much easier, 'This is awesome! BUT I wasn't active with either of my first pregnancies. My first labor to delivery was 16 hours. My second was 7 hours and with less drugs and recovery was 1000X better and easier. I'm working out with this one so we'll see what happens:)'

Did you notice a difference in the size of your bumps? Do you think the gender of your baby can give you a bigger or smaller bump? Tell us in the comment box!