I know you've posted previously about some drama with the baby's dad and, honestly, I'd freeze his loser ass out for the next few weeks. Make no mistake - from a behavior point of view, he is 137% in the wrong for not being more supportive. However, you can't force that, and continuing to ask and hope for it right now will likely make you feel worse.
Give it a few weeks, and lean on your friends in the meantime. Going forward, there will obviously be financial and legal responsibility matters to get sorted out, but you don't need to do that right now. Again, PLEASE don't think I am condoning his behavior, but the one.thing you can control right now is how much it impacts your day to day life. It might just be that a week or so of wondering what's going on motivates him to take an interest.
If you can stomach it, Ben and Jerry's Hazed and Confused is a pretty good short-term remedy for most drama.