09/19/2012 09:10 am ET Updated Nov 19, 2012

Meet Kristin Cavallari's Son Camden Jack (PHOTO)

In this week's PEOPLE, Kristin Cavallari and her fiancé, Chicago Bears quarterback Jay Cutler, open up their Chicago home to introduce 6-week-old son Camden Jack and reveal how life changed instantly with their "new family."

Read more on celebritybabies.people.com