Paternity, child support and the legality of it all?

Yesterday a girlfriend from this past March calls me and tells me she just had my baby this past week. I haven't seen or talked to for nine months aside from several surprise texts yesterday. Recently laid off, with no jobs in sight, and have been a nervous wreck over the thought of being a man and paying for what Ive created. I called her tonight to dialogue and asked her what the deal was as far as the state and child support and what should be done. She told me that she has no intentions of collecting child support from me, she just wanted to let me know that the child is mine. I am really confused now on what to do. Doesn't the state force child support payments? There is no proof Im the father yet, but Im pretty sure I am considering her racial preferability. I live in PA, and dont want to get a court order in the mail in a year stating I owe 10K for child support, or worse, end up in jail. Any thoughts as to what to do in this situation? A lawyer? I have no clue. Thanks.