Pregnant Celebs Show Off Their Bare Baby Bumps

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Expecting Celebs: Ashlee Simpson, Katy Perry, Gigi Hadid
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Pregnancy can be one of the happiest times in a woman's life, so it's no surprise that many want to show off their burgeoning bellies -- and famous moms-to-be are no exception! Here are a few celebs from over the years who weren't afraid to strip down while baby bumpin' -- with some even going nude for their pregnancy photo shoots.