Denise Lewis announces fourth pregnancy at 45

Olympic medallist and sports pundit Denise Lewis has announced she is expecting her fourth child.

Posing in a blue bikini, the Olympic gold medallist beams with pride as she showed off her large bump in an online announcement sharing the news.

"Well Twitter friends, I haven't let myself go I'm eating for two," she wrote in a Twitter post announcing the news, alongside the stunning snap.

"Excited and a little nervous even though I have been here before, but hoping for a healthy and trouble free pregnancy."

She also hashtagged the post #oldermum to signify the pregnancy coming in her more mature years.

A horde of Denise's celeb friends joined in to congratulate the star.

Dame Kelly Holmes wrote: "See I told you I knew! Congrats lovely."

Marathon runner Nell McAndrew wrote: "Amazing, congratulations Denise! Wishing you well."

"Welcome to the club!! Older mummies are awesome and four is a great number. Huge congrats xxxx" added former Team GB athlete Belinda Moore.

She is married to property developer Steve Finan O'Connor, son of comedian Tom O'Connor and former manager of hitmakers such as Neneh Cherry, Madness and All Saints.

They have two sons, Ryan, 12 and Kane, 9.

Denise has celebrated a glittering career.

Not only did she win the Olympic gold heptathlon medal in 2000, she has taken on a series of presenting roles, including on The One Show.

She also celebrated some success as the 2004 champion of Strictly Come Dancing.

Denise will be bringing up her newborn alongside her teen daughter, Lauryn.

The 15-year-old is her first-born from her previous marriage to Belgian 200-metre sprinter Patrick Stephens.

Speaking to the Express about the challenges of motherhood, Denise said that she feels a "guilt" if she is not in action.

“I can never stay in bed because the guilt kicks in far too quickly," she told the newspaper.

"There’s always something to be done in the house with a family of five."