Pregnant Kristin Cavallari: My Jeans “Aren’t Buttoning Anymore!”

Pregnant Kristin Cavallari is having a hard time fitting into her favorite jeans.

“They aren’t buttoning anymore,” she told reporters at the Betsey Johnson fashion show in New York City Monday.

“So I have this thing called the Belly Band that just goes around the top of your jeans so you can wear them without buttoning them. It’s the first time I’ve had sample size dresses not fit me. It’s all for a good reason. It’s all right. I’m pregnant.”

Cavallari also revealed that she indulges in her cravings while making sure she continues to stay active.

“I’m trying to balance it out by eating healthy as well.  I’ll eat a Twix and then I’ll have a juice to even it out.”

The reality star and her fiance Jay Cutler are not trying to decide on a baby name yet.

“We’re throwing around a couple, but nothing is sticking quite yet,” she said. “After we know for sure if it’s a girl or a boy, it will be easier to come up with concrete names.”