Can your pregnancy bump really get bigger at night?

Laura from Dublin, who is 16 weeks pregnant with her 3rd child, is amazed (as are we!) how much bigger her bump gets from morning (pic above, left) to evening (pic above, right).

"In the morning, I have a regular-sized bump," she says. "But, by the evening, I feel I look like I'm about to deliver – it expands so much!"

And we know, from other mums-to-be in our MadeForMums Community that Laura's smaller-in-the-morning-larger-at-night pregnancy bump is not a one-off. Loads of others say they notice it, too – like Jane: "I'm only 8 weeks 3 days with my 2nd baby and I have a slight bump in morning. But, by bedtime, I look like I'm 4 or 5 months!"

So, is it normal for your pregnancy bump to get bigger in the evening? And if so, why?

"Yes," says expert family GP Dr Philippa Kaye. "It's all about your abdominal muscles getting tired from holding the weight of your baby bump.

"As they get tired, they loosen and expand, letting your bump sit out further and appear bigger. Then, when you go to sleep those muscles get a chance to rest and recuperate, so by morning they're refreshed and ready to hold your baby in more tightly again.

"Quite how marked the daily small-to-large transformation is can depend on the number of pregnancies you have had, your build and your age. Basically, your abdominal muscles may loosen a lot more easily and noticeably if you're over 35 and/or you've carried several pregnancies already – or carried multiples.

"Your baby can move a lot, too, and this can sometimes change the shape of your bump.

"And non-pregnancy-related factors also come into play. Have you just eaten a meal? Are you gassy? Are you constipated? Do you need a wee? All of these can affect the size and shape of your bump, especially as your pregnancy progresses and there is less and less room for the rest of your organs."

Pics: Laura from our MadeForMums Community

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