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Yesterday Kristin Cavallari posted the above photo on Instagram and wrote, "Gym selfieā€¦.baby bump getting big!" Lookin' good!

The former reality starlet and hubby Jay Cutler are expecting their second child together early this spring, but she still hasn't confirmed whether she's having a boy or a girl.

Late last year K. Cav chatted with ABC News and revealed that she'd like to have a daughter, but she's fine with two boys too. "Of course I want a little girl, I think it would be a ton of fun, but a boy would be great too," Cavallari said. "Then Camden would have a little buddy, and I'd still be the girl of the house. I can see him being a little jealous at first, but once he gets over that initial reaction, I think he'll be really excited because he'll have a buddy to play with."