37 weeks and regretting it

I'm pregnant with my first child and I'm happy about it BUT, I'm regretting getting pregnant by my child's father. I cry at the thought of having his baby. We planned it something he wanted more and it's like through this whole pregnancy I've been alone and getting excited about this being my first time. He has a daughter from a previous relationship. He's changed so much in these past 9 months, he goes out and drinks every night and doesn't want to be around me and when he does he says I annoy him and makes be feel bad. I dont want my daughter around him and I'm thinking about not even telling him when I go have the baby. I love my daughter and I can't wait to meet her but I'm starting to hate her dad.