Mom guilt

So a few weeks ago, I broke up with my ex. We've had problems for a while now and I'm honestly just not in love with him. The problem is, I'm 26 weeks pregnant, we live together and he won't accept that I don't want to be with him. Last night he's like "I want you love to me again" but honestly, it's never going to happen. I have ZERO feelings for him which I've said multiple times. He's also called me the c word during normal conversations when he gets frustrated and a whore because I have guy friends that I'm never alone with. Obviously I just need to move out but the problems are:

1.) He's a great dad to my 5 year old autistic son so I feel so freaking guilty moving out but I'm miserable.

2.) My parents are going to take his side because he's a good dad and plays the victim (he NEVER admits to his mistakes) plus the fact I'm pregnant

So basically I'll be the monster in the situation but I'm honestly miserable. I just feel like I'll be a bad mom moving out. Nonlogical but yeah.