Does the childs father have to be involved?

So I know this is going to sound bad but please hear me out before you start judging. My situation is very complicated I'm not a whore or sleep around but I dont know who the father of my child is... me and my ex broke up like Sept 12 (just a guess) then sept 19 I hooked up with a guy who I've known for about 6 months before that. So they are a week apart and a paternity test is to much money so I have to wait until the baby is born. I'm about 23 weeks now but I don't know if I want either of them to be there at all... My ex and me where together for a year or so but we argued all the time and the other guy I barely know and don't want it to be his (which I know I cant control) because we barely know each other and he thinks because we are having a kid we HAVE to be together which I don't believe to me we are just two people having a kid together but he tries to control the whole situation and it bothers me. Is it bad if I would rather do this alone then with either of them? I know the other guy will be there unlike my ex but I'm worried the whole time he is going to say we NEED to be together and I know to some people its not a big deal but it is to me. I don't like being pressured and the more he tries to control the situation and say we need to be a family it just stresses me out and I've told him this and he doesn't understand. Everyone says its just my hormones but I mean it somewhat is but not completely. Am I in the wrong to want to do this by myself?