Reality T.V. Star Kristin Cavallari gave birth to her first child. The “Laguna Beach” and “The Hills” star welcomed baby boy Camden Jack Cutler Wednesday. Chicago Bear’s quarterback Jay Cutler is the baby’s father. Cutler, 29, and Cavallari have been engaged since 2011. The two broke up briefly last summer, but reconciled a few months later. Cavallari, 25, wrote Wednesday on her Twitter that she was “thrilled” to announce the baby’s birth that morning, and that everyone was “doing great.” Little Camden was born weighing 7 lbs. and 9 oz.