I caught my BF cheating......?

while I was 5 months pregnant. Now I'm 8 months pregnant and I want to move out of state before i give birth. I am unsure if his ways are something i would like my daughter to grow up seeing. He is a BIG time mama's boy. His mother got involve and went to my house to talk to me the day I caught him cheating. Also, she does tarot card readings, witch craft and told me herself there are spirits in her basement so Im not comfortable around her either. I know I should of never had a baby with this person but it happen. & im against abortions. I just want my daughters life to be good. Am i being selfish if i leave for a year or two since she is only a baby and come back to be around him when she can walk and talk so they can have a relationship? I grew up without a dad... so I kno what it's like. I just want him to realize what he did to what could of been a family because he tries to flip everything on me on why he cheated. All i want is a genuine "i'm sorry, I was wrong".