Kristin Cavallari and Jay Cutler welcomed their second child on Wednesday after the former Hills star gave birth to son Jaxon Wyatt.

The 27-year-old reality star shared the news on her Instagram page with an image of a pair of baby booties, a baby hat and her hospital wristband.

"Welcome Jaxon Wyatt Cutler 7lbs 11oz 5/7/14," she wrote.

Cavallari and Cutler, who married last June, announced their second pregnancy in October.

Kristin gave birth to the couple's first child, son Camden, in August 2012.