Kristin Cavallari just confirmed that she is pregnant with her third child with her husband, NFL player Jay Cutler.

The reality star announced her pregnancy today on her app. "We're at it again!" the 28-year-old said. "Thrilled to announce baby number 3 is on the way! The cutler crew just keeps growin'!"

She also posted a photo of herself with her hands shaped as a heart on her belly. She wore white shorts and a light blue button down shirt, while her two kids sat in the background.

Last year, "The Hills" star gave birth to her second son. At that time, she shared with E! News that she hardly had any problems with her first two pregnancies.

"I'm lucky," she said in the interview. "Both pregnancies have been really easy for me, I've just been really tired."

"It's just one of those things where I could literally sleep all day everyday but I'm snapping out of it a little bit now that I'm in the second trimester," she added.

The reality star has not revealed whether she is having a boy or a girl, but in the interview with E! Online about her second pregnancy, she said it didn't matter. "I honestly don't care, I mean there's great things about both," she shared. "Another boy would be fun, Cam would have a little buddy and then I'd be the woman of the house...but of course I want a little girl, so I don't know."

Back in 2012, she gave birth to her first child, Camden Jack. After a year, she married Jay Cutler in Nashville. She has been open about her children, describing her eldest son as a "good big brother."

"He's very protective and very sweet," she told Us Weekly. "But he also gets a little upset when Jax tries to take his toys and messes with his stuff. "

"He gets a little territorial with some stuff, so it's kind of funny," she added.