If he has hurt you being his baby's mother what is he capable to doing to your baby you have to think of that one
Do you believe he's a genuinely safe person? That he will keep her safe and never hurt her? So you trust him to love her and care for her and at least meet her basic physical needs?
Call the domestic violence hotline. They are very helpful and will help you find free legal advice. Until there is a custody agreement filed with the court, either one of you can “just take her” and the police can’t do anything so beware of that. If she is in danger with him, CPS can get involved more urgently. You should probably file a police report, get a restraining order, and get a lawyer. But start with the hotline, they will help you think it through. You can call them every day. If you don’t love the first person you talk to, you’ll get someone else.
@Bronwyn some people are great dads but horrible partners.
That's tough... my kids go to their dad every other weekend. Courts will decide what's best if you two can't agree on what best if he takes you to court. Do you trust him alone with baby? Is he a decent dad even though he wasn't a safe partner? How old is little one?