I haven't been in your shoes, A., but I feel for you. Being a Mom is one of the hardest, most rewarding jobs in the world, and having to do it alone makes it that much more difficult. Your hormones are raging right now due to the childbirth, so you would be extremely emotional under the best of circumstances. What you're feeling is completely normal. You just want to make sure that you don't get overwhelmed, so do you have any other help (besides the father)?
The bottom line with the child support issue is this....your baby is going to need it. As hard as this is for you to process right now, if you feel like you've made every effort with the father and he is not responding, then do yourself a favor and file the paperwork. Once you get past the initial hearings and stuff, support will be mandated and deducted from his pay and sent to you directly (at least I am pretty sure that's how it works). That way, if he CHOOSES not to see the baby, then you have done all you can do, but you still get the financial support you need to raise this child. If he does decide to be a part of the baby's life, then you will have to let him have visitation. I will be praying for you. I can't imagine how hard this must be for you, but please have someone help you with the paperwork if you can't bring yourself to do it. I hope this baby's father realizes very soon the joy he is missing out on by not being a part of his child's life.