Baby daddy drama

Christina • Due May 6th with a little princess💕 single mom😁
I'd like to get any advice you ladies have or just a place to vent. I left my baby's father in November because I didn't feel safe in the house we were living in. His brother and mom were living with us. My boyfriend and his brother screamed incessantly at one another over everything. His brother was also doing a lot of drugs in our house, even though we made it clear he wasn't welcome to do so. But when my boyfriend would catch him, he would always make excuses for his brother and disrespect my feelings toward the issue. I felt that his mother was always disrespecting me as well. After I learned I was pregnant, we asked her not to smoke around me....that obviously went in one ear and out the other. She would also tell me how i was going to parent my child and that "it was going to be a little hellian" no matter what I do because that's how her children were. A few days before I left, the three of them got into a huge argument to the point where I feared for my safety. It was really the last straw.
Now that I've left (I moved out of state to be back with my family), my baby's father is denying that the baby is his, but yet he says that he wants to be in her life. He wants all the privileges of being a father all the while denying our child. He goes into this drama every other month. I told him that as long as he denies her, I don't owe him anything. I just hope I'm making the right decisions in waiting until my daughter is born to prove his paternity and then seeing what he wants in the way of seeing her and whatnot.
Thanks for letting me vent😔