Lynne Spears’ well-meaning attempt to prepare daughter Jamie Lynn for motherhood has reportedly backfired.

According to a U.S tabloid, the pregnant teen threw up after being shown video footage of a real natural childbirth by her mother. 

"Lynne was trying to be helpful," a source tells Star.

"She wanted to show Jamie Lynn what a woman goes through giving birth, that it's a natural and beautiful thing, but all Jamie Lynn saw was the blood - or 'goop,' as she called it - the screaming and the pain.

“It was too graphic for her. She flipped out and literally got sick."

Apparently Jamie Lynn has been put off natural childbirth all together and “is wondering if a C-section is possible.”

"She wants to be knocked out and then wake up when it's all over," adds the source.