updated 10/06/2009 AT 7:00 AM ET
•originally published 10/06/2009 AT 8:15 AM ET
Dr. Phil McGraw is going to be a grandfather – and he will announce it on his TV show Tuesday, PEOPLE has learned.
This will be the first grandchild for Dr. Phil and wife Robin, and the first child for their 30-year-old son Jay and his wife, Erica McGraw.
Dr. Phil, 59, says he got the happy news during a recent trip to Europe. “We were actually vacationing with the whole family and were in Elba, Italy,” he says. “Jay and Erica had discreetly gotten several home pregnancy tests the day before in France, and they sat us all down in Elba and said they had some exciting news! ‘We are pregnant!’ ”