How to confront a piece of shit cheater??

So add me to the list of women who have a piece of shit SO, yay 🙄🙄🙃🙃🙃🙃🙃🙃

Anyways my OB office called me a few hours ago and told me I tested positive for chlamydia. Just in time for the holidays, such a wonderful fucking present. I’m 36 almost 37 weeks pregnant with my baby girl who could come any day now since I have a history of PPROM.

I have no family down here and my friends have their own lives/families so I have no where else to go with my 19 month old son besides staying home with this shit person. Plus I can’t exactly move back home when I’m 36 weeks pregnant and it’s a whole state away. What do I do?

He’s obviously going to now be my ex but how do I confront him without wanting to stab him in the dick? How do I keep calm and get the answers I want. Not only did he cheat on me while I’m pregnant with our second kid but he had the audacity to not even wrap it the fuck up! I genuinely cannot continue to live with him until I give birth but have no where else to go. Any advice??

Update:

We’ve been together 4 years, have a 19 month old son already. They test you the beginning and end of every pregnancy. So no he didn’t get it before we got together. How about you ask questions instead of assuming shit. I tested negative when I was 6-8 weeks, can’t remember. Then they tested me again at my 35/36 week appointment where I tested positive and I very much have it because I’ve been having symptoms as well. He’s also just a bf so at least we haven’t gotten married yet.

I can’t leave the state and go back home being so close to my due date. I’m on Medicaid in my state so it wouldn’t cover having baby in a different one. Same for postnatal care. Plus there’s no way I could make that 5 hour drive being this pregnant and I have no car. I do have money saved up and will continue to save as long as I continue to work. Also my name is on our lease so I’d rather not break that for credit reasons. I just have so much invested here that idk where to even start.