Getting ready to happily expand their family, Jason Biggs announced that he and his wife, Jenny Mollen, are expecting their first child together.

The "American Pie" actor spilled the beans while on an appearance for "Chelsea Lately," which is set to air on Wednesday night (July 17).

Referring to a photo of Biggs and Mollen, Handler says, "Her breasts look really engorged," to which Jason replies, "Her breasts are very big these days, would you like to know why? 'Cause I put a baby in her belly!"

Sharing the news with his Twitter followers, the 35-year-old retweeted a sonogram photo of their bun in the oven just hours later. Congrats to the soon-to-be parents!