What a difference a few months make. Kristin Cavallari and Jay Cutler broke off their engagement in July, but by November they renewed it and now the former "The Hills" star is pregnant.

"We are thrilled to announce we are expecting our first child together," the couple told PEOPLE. "It's an amazing time in our life and we can't wait to meet the new addition to our growing family."

Amazing how quickly things go from good to bad to good again. Congrats to them!