My unborn child's father doesn't know what he wants

So I broke up with my boyfriend of four years in July, it was a toxic relationship that really broke me down. I moved out, started new hobbies but I had a bad day, back tracked to an ex from years ago 7 to be exact and regretted it immediately after.

I still got pregnant with paragard. I wasn't happy about it because I'd fucked up again now I'm having a baby with my controlling ex.

When I told him he denied the baby stating I was fresh out of an relationship and he couldn't take my word for it while that was reasonable I understood where he was coming from but I broke up with my ex in July it was November when I found out I was 6 weeks pregnant he was the only one I was with. I offered him a DNA test but he started insulting my character so I blocked him.

Now he shopping around to family members talking to them, getting them to talk about me and talking about how he wants the baby to be his but I'm a liar.

Everything in me just wants to ghost him forever I don't want to deal with him but I feel like its wrong. I really dk what to do I'm so stressed out