Jamie Lynn Spears' Mom 'Furious at Second Pregnancy News'

Jamie Lynn Spears' mom, Lynne, is said to be "furious" that the news of her daughter's second pregnancy has leaked.

Although there has been denials from the Spears camp that Jamie Lynn, 17, is pregnant with her second child -- just months after she gave birth to daughter Maddie Briann -- "a close family member" tells American tabloid The National Enquirer that the Spears family is in an uproar and Jamie Lynn is being pressured to abort the baby.

The source says, "Jamie Lynn's mom is furious about the pregnancy.

"Lynne doesn't want to talk about it publicly until they sort this out.

"Jamie Lynn is being pressured by people very close to her to abort. But no decision has been made yet.

"Casey is furious. Jamie Lynn hadn't told him about the pregnancy. He learned about it in the media and then confronted her and she told him it was true.

"Lynne and Jamie Lynn have been arguing nonstop by phone.

"If Jamie Lynn has this baby, you can be sure they will try to sell the official confirmation of the pregnancy to a magazine, as well as the baby photos."

Jamie Lynn reportedly made $1 million selling the news of her first pregnancy and the baby photos to a glossy magazine.