Congrats on your pregnancy. I think you should stay away from him. Men like that dont change, or they change for a few months like everything is ok, until something happens to pi'ss them off and they lose it with you again. You want your baby in that environment? My neighbour's boyfriend is like that, and they recently had all 5 kids taken off them by social services because she chose her abusive violent boyfriend over her own children.
You dont need his support to get through pregnancy or raise a child. Lots of single mothers out there do a great job of it. Would be good if you have some family nearby for support, or friends?
But if you really want him back, you could see him but ****not**** live with him,make sure hes going to anger management classes or some sort of counselling help for his anger issues, or refuse to even see him.
Dont go back just on his say that he will change. They are empty words, wait until you see hes doing something to get help.
Dont go back after you've been so brave by leaving him in the first place, unless you know for sure you and the baby are safe. Be careful, goodluck