Pregnant by a man I didn’t know was married

Hi THT fam!

This one is a doozie. I was talking and sleeping w man for 6 months before I found out he was married and completed ended things about a month ago. When I found out he was married I confronted him. He said he was unhappy in his marriage and that he wants to get a divorce. That I was just SO perfect and he wanted to be with me. Okay cool I don’t care. You’re literally MARRIED! I ended things right after that conversation. Wellll I’m pregnant. Idk what to do. I’m 21 and he’s 32. He does have a 5 year old girl. I would also like to say that I am on birth control so I wasn’t being completely stupid. The wife knows he cheated as well. I assume that they’re still together. Not sure. Do I unblock him and tell him? Should I have him/her? I only want kids w someone who is going to be an equal parent. Otherwise I wouldn’t regret not having them. From what I know he’s seems to be a great dad to his little girl and he does want more kids. I’m so conflicted. Please help. I’ll be active for any other questions for context. Thanks in advance