Jamie Lynn Spears Pregnant With Baby Number 2?

Britney Spears younger sister Jamie Lynn is set to become a teen mother twice over, according to a new report.

Just four months after the' 17-year-old welcomed daughter Maddie Briann, a U.S. tabloid is claiming that the Zoey 101 star is pregnant with child number two.

The National Enquirer quotes a source who claims, "Jamie Lynn is about eight weeks pregnant, and she and her mom Lynne are hysterical.

"Neither of them knows what to do, but for now they're trying to keep the news from getting out.

"Jamie Lynn believed she couldn't get pregnant while she was breast-feeding.

"She'd expected to have her period by early September, but a home pregnancy test came back positive and Jamie Lynn cried her eyes out.

"Lynne was livid when she found out."

This new pregnancy bombshell comes amid rumours that Jamie Lynn has separated from fiance and baby-daddy Casey Aldridge.

The source adds, "Everyone has reminded Jamie Lynn how much trouble she had adjusting to motherhood with Maddie, and pointed out that having a second baby now would only be a recipe for disaster."

So is Jamie Lynn going for the Britney baby double?

Stay tuned to Entertainmentwise for the latest on this breaking story...

Jamie Lynn Spears Through The Years