Is Jamie Lynn's beau really her baby daddy?

New York, Jan 18 : It looks like that not everybody is convinced that Jamie Lynn Spears' boyfriend Casey Aldridge is the father of her child.

A source has overheard a scribe from Jamie's show 'Zoey 101' revealing some secrets about the Spears family, which included that the crewmembers of the show are not very sure that Aldridge is the father of Jamie's child.

"Everyone on the set is shocked by Jamie Lynn's pregnancy. He [the writer] said Jamie comes off as a shy girl, and that her mother, Lynne, rules her with an iron fist," the New York Daily News quoted the source, as saying.

The writer also said Spears' boyfriend, Casey Aldridge, is "petrified of Lynne" - and that the crew is doubting he's even the father, because he and Jamie Lynn are rarely alone.

"They don't know who did it," our spy overheard. "He even said it could be anyone on the show!" the source added.

ANI