Police say the chase began on Interstate 20 in Douglasville when an officer clocked a car driven by 21-year-old Jessica Bruce doing 86 mph.
Capt. Darren Shaw of the Douglasville Police Department says the officer tried to stop Bruce but she got off the freeway and continued to speed.
Police say she finally hit a car and another car struck hers.
Officers say the woman in the other car has non-life-threatening injuries. They say Bruce faces charges that include one for the death of the unborn child.