Baby father drama??

I started seeing this guy in October. It was good at first then he kept toying with my emotions, long story short. In February I found out I was pregnant! He told me to abort it. Ignored me. I told him I wasn’t doing that & I’ll raise the baby myself, we argued back and forth about it. He eventually came around & said he’ll be here.

I end up finding out that he’s talking to his ex girlfriend behind my back who lives in California. We’re in NY. We break up, he comes back into my life apologizing blah blah blah. I find out later on that he was seeing a girl behind my back & having raw sex with her while with me. Risking giving me an STD while pregnant. He ended up missing my first sonogram to be with her as well. I reshared a post on Facebook about being alone while pregnant because I was upset and he texted me calling me trash & all of this extra stuff. We broke up because he messaged that same girl behind my back and he doesn’t have any respect for me.

We haven’t really been communicating, just arguing for the past 2 weeks. Ive recently been super ill, fever of 101.8 and I just got tested for covid. Im 18w6d. I texted him and told him I didn’t really want him around me or at the appointments right now (he’s not allowed in right now anyways due to covid so he just sits in the car) because I don’t know who he’s around and I can’t risk being sick when pregnant. If he was allowed in it would be different. I’m not keeping him out of her life either. I never said that.

He started threatening me with a lawyer & told me to get one by September. I’m due for the baby in October. I’m so upset and don’t know what to do or why he’s even doing this, any advice would be helpful. I’m 21, he’s 24 and we’re in NYS.