LOS ANGELES, California (X17online) - Amy Poehler and her husband, Will Arnett, are "expecting their first child," their rep Lewis Kay confirmed to X17.

That isn't the only good news for Poehler, 36. Baby Mama, Poehler's movie with Saturday Night Live co-star Tina Fey, snagged the number one spot at the box-office this past weekend. Poehler plays a surrogate mother in the film.

The couple have been married since 2003, and the baby is due in late fall.