Kristin Cavallari, Jay Cutler

Kristin Cavallari and her husband Jay Cutler welcomed their second child on Wednesday.

The reality star shared the good news on Instagram, where she announced her new son's name: Jaxon Wyatt Cutler.

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The couple announced in February they were expecting a son, saying, "We couldn't be more excited!"

Cavallari and Cutler began dating in fall 2010 and tied the knot in June 2013. They are already parents to son Camden, 19 months.