Jennifer Lopez is Pregnant -- Again!

Jennifer Lopez wears a fake baby bump on the set of her new movie The Back-Up Plan filming on Tuesday (June 16) in Pasadena, Calif.

The 39-year-old mother will play a pet store owner who gets tired of waiting for Mr. Right and gets artificial insemination, only to meet the right guy on the same day.

Rumor has it that Jennifer is coming out with two new albums this year — A Greatest Hits one, marking her 10th year in the music biz, and another completely new album.

10+ pictures inside of Jennifer showing off her new baby bump…