"Jamie Lynn's baby's heart rate dropped every time she tried to push,"
a family insider tells Star. "They did an ultrasound and quickly discovered that the umbilical cord was too short."
But despite the doctors' dire warnings, the 17-year-old "...was adamant about having a natural delivery."
Everyone in the room pleaded with Jamie Lynn to listen to the doctors - including big sister, Britney.
Brit had already been with Jamie Lynn for hours, massaging her back as she endured painful contractions. "But she got mad,"
says the insider. She told Jamie Lynn to "just have a damn Caesarian,"
as she did, Britney told her little sister. Britney then ran out in tears, apparently, because she couldn't bear to see what was happening.
Labels: britney spears, jamie lynn spears