A 22-year-old Florida woman could spend the rest of her life behind bars after stabbing a pregnant woman 14 times over a tip.

A pizza delivery worker, upset over a tip, allegedly repeatedly stabbed a pregnant woman at a Florida motel, a sheriff's office says.

A pizza deliverer in Florida has been charged with pushing her way into a motel room with an accomplice and stabbing a pregnant woman after a dispute over a tip, authorities said.