Kristin Cavallari  the hills pregnant blonde spandex sunglasses jay cutler mtv Kristin Cavallari  the hills pregnant blonde spandex sunglasses jay cutler mtv

Kristin Cavallari hit up Erewhon Natural Foods in Beverly Hills for a refreshing beverage, and we couldn't help but notice her tiny baby bump.

The Hills star, who is expecting her first child with Chicago Bears quarterback fiance Jay Cutler, was fresh from a mid-day workout. We have a feeling this is one expecting mom who is going to look gorgeous all the way through her pregnancy.

Cavallari, 25, has been very vocal about finding out the sex of her little baby as soon as she can. We can't wait to hear if she'll be shopping for pink or blue!

See more of Kristin's growing bump in our gallery below.