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Hilary Duff

Hilary Duff got into the Christmas spirit in 2011 when she posed in front of her tree showing off a bare belly that was painted with a green and red gift box. "Happy holidays from the three of us!!" the former Disney star wrote, referring of course to hubby Mike Comrie and their baby project. Son Luca was born in March 2012.

Pregnant Celebs Bare Their Bumps

Yahoo Celebrity

Remember when it was a really big deal that Demi Moore showed off her baby bump on the cover of Vanity Fair? Well, we've come a looong way since 1991, folks. Today, celebrity moms-to-be sharing bare belly shots is the new normal. And they don't need a fancy photo shoot to do it — just a camera phone and a Twitter app. Check out these pregnancy selfies shared by the stars...