Pregnant off one night stand

So I’m currently 34 weeks pregnant. And it’s finally dawning on me that I may be doing this alone. Back in May I had a one night stand with this guy and of course no protection was used. Stupid me I know please don’t bash me! At first when I rolls him he was fine with it then like 2 weeks later he wanted me to get an abortion. So I don’t believe in abortions AT ALL so that was a no go. On top of that he had a gf 🤦🏽‍♀️ which I found out about after we did the deed and I decided to lurk on his page He recently got married (in October )and just had a baby in July with his now wife (gf when we fooled around) I’m just lost on how to handle this. Do I say something to her do I not say something to her. He now doesn’t claim my baby like at all. So I haven’t talked to him since I was like 16 weeks. What do I do ladies please please give me some advice