Should i tell him?

Okay so me and my child’s father are no longer together because he was very abusive and we had the police called and CPS came to evaluate us. And he was granted supervised time with our daughter. I’m so scared that I’m pregnant again by him. I don’t want to be with him ever again but i also don’t want an abortion. I was on birth control pills but i was waiting on my doctors appointment to get an IUD. But if i am pregnant do i have to tell him? I know he won’t have rights unless he  acknowledges paternity. I’m afraid he will take me to court or try getting back together with me. Should i tell him it’s not his? I took a pregnancy test a few days ago and i feel like i saw something but it could be my mind playing tricks on me and I’m not off until Tuesday to go to the doctor. He was so abusive and i know he hasn’t changed and if he finds out he will manipulate me again and be back in my life abusing me.