Jamie Lynn Pregnant AGAIN?!?

Here's a shocker - The National Enquirer is reporting that Brit's little sister is knocked up AGAIN!

Jamie Lynn Spears just gave birth to her first child, Maddie Briann on June 19, and the newspaper reports that the 17-year-old is already eight weeks pregnant with her second child, and both her and mother Lynne "are hysterical."

A source for the magazine adds that "neither of them knows what to do, but for now they’re trying to keep the news from getting out.” Jamie Lynn reportedly believed that she couldn’t get pregnant while she was breast-feeding, and according to a source for the paper, when her home pregnancy test came back positive she "cried her eyes out."

Would Jamie Lynn really be this careless again? Or do you think she actually wanted to get pregnant again? And who's the daddy? So many questions!