Kristin Cavallari pregnant blonde white pants scarf jay cutler the hills Kristin Cavallari pregnant blonde white pants scarf jay cutler the hills

Kristin Cavallari's body is changing quickly ... and we're lovin' it!

The former Hills star looked gorgeous and glowing while showing off her baby bump while out with a friend in Hollywood.

The mama-to-be, wearing a snug grey shirt, decorative scarf, white jeans and flip flops couldn't stop smiling. Pregnancy definitely suits her!

Cavallari and fiance Jay Cutler have yet to announce a due date for their little bundle.