Single and pregnant

I left my child’s father when I 2 months pregnant, I am now 7 months into my pregnancy. I left because he didn’t want to help with bills, he would much rather club and drink 7 days a week and would come home at any hour of the night, I just felt single a great part of our relationship. We’ve been together 4 years and when I met him he was the same way. But I after I got pregnant after suffering multiple losses I figured the least he’d do is be a support person for me or slow up on his going out. Well fast forward to present I miss him, and it just feels like I can’t move on or forward with out him. A part of me keeps asking myself why I’d much rather deal with that and another part just can’t be with out him I don’t know what to do, it just makes me break down and cry just thinking about it.