Dr. Phil Is Going to Be a Grandpa -- Again!

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Dr. Phil's family keeps getting bigger!

The 60-year-old TV host and self-help guru is going to be a grandfather again, his son Jay McGraw confirms to UsMagazine.com.

"Erica [Dahm] and I are having a boy and couldn't be more excited," Jay, 31, tells Us. "Avery will make an amazing big sister."

McGraw -- who's the creator and executive producer of The Doctors -- wed the Playboy model in a private ceremony at his parents' home in Beverly Hills in August 2006. The couple welcomed daughter Avery on March 18, 2010.