So upset

I Just had my baby 2 weeks ago, Me & My baby daddy are still trying to figure things out. We broke up when I was about 5/6 months pregnant because we are just toxic for each other but we both are still very much in love with each other. He allegedly got another woman pregnant while we were together ( I was already pregnant). She’s due in a few weeks and the closer the time is coming for this baby to come makes me so emotional because it’s like why did you do this. He’s saying it’s not his child but if it turns out to be his I can’t see myself associating with him anymore. I wouldn’t be able to co parent with him. I’m still hurting behind that and I try to act like it doesn’t bother me but it does. Our baby just got here and you’re already about to have another baby. Plus knowing if that is his child he’s going to have to spend time with that girl, doesn’t sit right with me.