hi kim. i'm so sorry you're in this situation. i don't have much good advice to give you, but i'll tell you what i can.
1st. your self respect is an issue, and you need to work on that. if it was me, i wouldn't give him any sex unless he started to prove to me that he is wanting to continue a relationship with me. otherwise he's just using you as his c@m dump (please excuse me for saying that, but it is true).
2nd. i admire you so much, because even though you see yourself as weak, i see you as very strong. just by virtue of the fact that you didn't get an abortion even though he pushed you to tells me you're strong. also the issue with the lease tells me you're smart AND strong.
god bless you! i hope things work out for you. worst case scenario, it ends up being you and your beautiful baby, and you make your own family of two. i hope however it works out, that you end up being happy with the outcome. i'll pray for you!
good luck sweetie,
jasmine