Second Trimester — You'll Start To Show
It's in your second trimester that you'll show your first signs of a baby bump. It'll start small, of course, but continue to grow up until the birth. Near the end of this trimester, your belly button may even pop, Molly explains, "as the birthing person’s tummy expands, sometimes the belly button will pop into an outward position, making your innie now and outie!"
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