So frustrated

So I'm 20 weeks pregnant and I'm trying to prepare for the arrival of my daughter and her father has made my whole pregnancy a liveing hell from the day I found out I was pregnant by telling me she's not his him constantly telling me I'm sleeping with other men him bringing up me hanging out with a ex in the past and much more I'm trying to figure out how I could get along with him but he makes it so difficult by playing head games with me I honestly don't know what to do anymore I just want her to have both of us in her life but he's making it impossible I'm honestly considering asking him to sign his rights over he thinks it's ok to put his hands on me and it's completely unacceptable