Credit: JB Lacroix/

Oh, boy -- looks like Kristin Cavallari is going to be the odd woman out.

The pregnant reality star, 25, and her fiance Jay Cutler, 29, are expecting a baby boy, Cutler's Chicago Bears teammate Earl Bennett revealed on WSCR-AM 670's The Boers & Bernstein Show Monday.

"New toys, a baby on the way -- he's having a boy -- I'm excited for Jay," Bennett, 25, said. "It's a great time."

The first-time parents have yet to confirm their baby's gender. Laguna Beach star Cavallari recently opened up to Glamoholic about her surprise pregnancy. "We weren't trying to have a kid, but we weren't not trying," she explained. "We left it up to fate. I knew there was a possibility but I was really excited! Even if you are trying, just to see a positive result is shocking!"

The couple, who briefly ended their engagement before reconciling in 2011, have put wedding plans on hold until the arrival of their baby boy.

"We were talking about the possibility of having another kid right away and then getting married so we can have two kids close in age," Cavallari said. "We want four kids, so we're thinking maybe have one more, then get married, then have two more. But we'll see -- it all depends on how the first one goes."