Fred Savage & Wife Expecting Second Child

Originally posted Sunday January 27, 2008 11:15 AM EST

Fred Savage wants the world to know about his newest project – another child!

"We've got number two cooking right now," Savage, 31, told PEOPLE at Saturday's 60th annual Directors Guild of America Awards in L.A., pointing to his wife Jennifer Stone's belly. The pair is already proud parents of a son.

"We're due in May," Savage revealed, but Stone said the baby's name and sex are going to be a surprise.

Savage and Stone, childhood sweethearts who married in Aug. 2004, welcomed their first child, son Oliver, in Aug. 2006.

Asked whether they're thinking more kids, Savage said with a smile, "That's a discussion."

Savage, who directed last year's comedy feature Daddy Day Camp, was nominated for his second Directors Guild award Saturday, for his work on the Disney Channel's Wizards of Waverly Place.