I hate my babies father.

I am 20 years old and 33 weeks pregnant. Father of the baby is 24, VERY immature. All he does when he's not at work is hangout with his buddies and play Xbox and drink. Never cleans up after himself, since I met him he's never scrubbed a toilet or vacuumed. He lives very disgusting. I moved out of our house in with my dad when I was about 20 weeks pregnant because I was so terribly sick from my pregnancy dealing with having a nurse come to my house every week and give me IVS because I could not keep any food down. He was never there to help or support me. And when we were doing really good I found messages on his phone between his ex and himself talking sexual related things. And ever since then I wanted nothing to do with him. I seriously wish he'd just fuck off and leave me alone. He claims he wants to be part of my babies life and he talks himself up on how good of a father he is going to be, however I have had troubles with my pregnancy and worries for the baby and he goes days without even asking if I'm alright. He is very fake. He tells his family he does these things but he does not. I don't want him around me. He's not allowed in the delivery room. And I'm debating on whether I want to even put him on the birth certificate. I know he will not be a very good father. He is extremely selfish and childish. (Yes I know this comes back to my fault for me choosing to lay with him) however, I did not think he could be this big of a crook. I can't stand him and he is not nearly grown up enough to take care of my baby. I am extremely scared for this baby to be in his care in any type of way. Is there any advice anyone can give me