Woman wakes up from four-month coma, discovers she has given birth

SWEETWATER, Tenn. -- A pregnant woman in Tennessee woke up after a four-month coma only to discover she had given birth.

Sharista Giles, 20, woke up this week after being in a coma since December. According to a Facebook post on a support page, Giles opened her eyes and squeezed a friend's hand.

The accident happened when she and a friend were driving home from a concert and her friend fell asleep at the wheel, crashing the car. Giles suffered severe head trauma and doctors said her chances of a complete recovery were less than 10 percent, according to WPVI.

"The doctors were telling us there was nothing else they could do," said Beverly Giles, 49, of Madisonville, Tennessee, told ABC News. "They already gave up hope. We never gave up. She's fought this hard."

In January, Giles gave birth to "Baby L" while she was in a coma. On Wednesday, the 20-year-old opened her eyes for the first time in months.

Doctors are still trying to determine Giles' prognosis.