Can I get convicted for this?

So here's the story. My son's mother and i have been separated for about 4 years and our son is 4 years old. We recently got into a huge argument in which she called the police and told them that i beat her. However I never laid a hand on her, when the police arrived at the scene she was fine with no bruises or scratches but i still was arrested. We have a court order for visitation and she was violating it by dropping off our baby at my house instead of the place were the judge stated on the court order, I have to go to court for a domestic issue and i am scared that i might go to jail. She has no evidence that i beat her, but i have school administrators willing to testify about her lies. I do not have a criminal record and i have never done drugs. I am a good honest working father that goes to college. i am super scared of going to jail for something i ddidn'tdo. Pre trial is in April and i am going crazy. People are telling me that she should drop the charges but i do not want to contact her until this is over. Being a good father landed me in jail for the first time in my life. Someone please tell me if they can convict me when she has nothing to prove that i beat her and i have no history of violence,