It Turns Out Shaking Your Butt Can Actually Be Good For Pregnancy

Watch these five pregnant women get down.

Kmart's latest holiday commercial features five moms-to-be dancing to "Santa Baby."

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If you were curious, Kmart confirmed that each of the dancers was, in fact, pregnant.

Now, you may be a little concerned over all this shaking.

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You may find yourself asking, "Is all of this shimmying safe for the baby?"

But all that shaking is actually a good thing.

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And it's encouraged by medical professionals.

Here's what an OB-GYN at the Yale School of Medicine told BuzzFeed Life:

Getty Images/iStockphoto Sergey Borisov

"To be honest, I'd actually be happy if all my patients could dance like this. Staying limber and fit is terrific for labor and delivery, and this doesn't look dangerous at all. Hey, I let my patients ski as long as they are good at it," says Dr. Mary Jane Minkin, M.D., FACOG.

As for the pitfalls of dancing during pregnancy, here's what the co-author of V Is for Vagina told BuzzFeed Life:

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"If someone's really going to be dancing one of these intensive classes working up a sweat, you'll want to already be used to that kind of movement before pregnancy. If you're worried about overexertion, you can wear a pulse monitor. But this type of dance is perfectly healthy. The baby may just come out a dancer," says Alyssa Dweck, M.D., an OB-GYN in Westchester County, New York.

So get down on the dance floor, mommies-to-be!

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It's practically doctor's orders.