Jenna Dewan-Tatum Baby Bump: Actress Stays Fit With Yoga (PHOTO)

Jenna Dewan-Tatum proudly showed off her growing baby bump over the weekend.

The actress, who is married to "Mike's Place" star Channing Tatum, revealed her baby bump in a photo on Instagram. Wearing a body shaping dress that clearly revealed the bump and a jean jacket, Dewan's friend Stacy Keibler posted the picture.

"Its popping!" Keibler wrote, adding that Dewan "is the cutest mom to be!!!"

Dewan and Tatum met in 2006 on the set of "Step Up." They were engaged in 2008 and married in 2009. In December, the couple announced that they would be expecting a child.

Dewan had expressed a desire to have children in the past, but was not sure when it would happen. "When it's meant to be, it will happen," the actress said in an earlier interview with Us Magazine.

 A source told the magazine in December after the announcement that the baby was a "total surprise."

When announcing the baby, Tatum stated that he and his wife had been considering starting a family. But for Tatum, just one baby may not be enough.

"I'm ready; I think she's ready," Tatum told People in December. "The first number that pops into my head is three, but I just want one to be healthy and then we'll see where we go after that."

Dewan has admitted to a somewhat hormonal ride on Twitter. In different tweets she mentioned a Beverly Hills lunch being bad for her "hormones" and an unexpected "cry while watching 'Baby Boom.'" Tatum is all frills and thrills.

"Channing is so excited for the baby," a source told Us Weekly. "He's been wanting this a long time. They are over the moon about becoming parents."

Dewan has also been keeping fit during her pregnancy and attending yoga classes.

"Cameras should have been rolling as I just took my first kundalini yoga class," Dewan tweeted earlier this month. "I had no idea what I was doing."