Help please! I just need some reassurance im doing the right thing.

Ive been single for 4 months. The last 3 months of my pregnancy to now. I miss him so much but i left him for her safety since he wanted me n her dead and attempted to kill us and was very abusive threw out my pregnancy. But i keep thinkn that ill take him back. What do i do. Im tired of thinkn bout him all day i miss all our good times now he doesnt even wanna see his baby and idk what to do