JACKSONVILLE, Fla. -- A pregnant woman who was arrested in a hospital emergency room four years ago has just learned she can sue the officer with allegations of unlawful arrest.

Hospital surveillance video shows Melanie Williams running into St. Vincent's Hospital emergency room in premature labor, bleeding and sick.

The video also shows police following her inside and arresting her.

Before the arrest, Williams called 911 from her car telling police she was sick.

Caller: I need some help.

911 Operator: Where are you?

Caller: Because I am pregnant. I'm bleeding and I feel like I am going to faint.

Police lost the call, and Williams ended up driving to the hospital.

According to the police report, Williams was reckless and ran a red light, so an officer pulled her over.

She told police she was sick and sped off, according to the report.

Police followed her to the hospital, where the surveillance video shows them arriving. The video doesn't show the arrest, but Williams' sister talked to Channel 4 right after the arrest explaining what happened.

"No, they knocked her down and had their foot on her back and her neck and all this type of stuff," Williams' sister Tamera Williams said at the time of the arrest. "(Williams) is yelling, 'I'm pregnant. Someone help me. I am bleeding.' They took her back out of the emergency room and back out into the police squad car.

Williams gave birth to her baby 10 days later, and both were fine.

Williams previously filed a different suit in federal court against the officer and Sheriff John Rutherford. At first, the court ruled in her favor, saying the officer used too much force and it was an unlawful arrest.

A ruling from the court of appeals changed that. The court of appeals' ruling said the behavior of the officers was reprehensible, but the force was not excessive.

"All the appellate court really said at the end of the day is that the case should go to trial, and so when it happens and so when the trial happens we will be able to present all the facts that the appellate court could not consider," city attorney John Phillips said.