09/14/2011 at 08:00 AM EDT
After hinting at a pregnancy in the film's first trailer
fans can get some brief looks at Bella's (Kristen Stewart
) baby bump in the newly released preview
for Breaking Dawn – Part 1
While the mortal heroine feels the supernatural being growing inside of her, husband
Edward Cullen (Robert Pattinson
) and his dad Carlisle (Peter Facinelli) tell her the grim news.
"The fetus is incompatible with your body," says Carlisle. "It's too strong."
"It's crushing you from the inside out," says Edward.
"Your heart will give out before you can deliver," adds Carlisle.
Will the baby break up the parents-to-be? Find out on Nov. 18, when Breaking Dawn