Buffy’s having a baby

Sarah Michelle Gellar Freddie Prinze Jr.

are expecting their first child together, a source close to the couple tells People magazine. Gellar is reportedly due in the fall.

Gellar, 31, and Prinze. 33, have been married six years.

She’s getting ready to shoot the HBO pilot, “The Wonderful Maladays.” Prinze recently shot the comedy pilot “No Heroics” for ABC.