I’m struggling

I told my boyfriend I can’t handle him having a only fans girl he used to do stuff online with as a friend he’s known her for 2 years we’ve been together for almost 6 so it’s been a problem for a while I’ve brought it up before but always got the your being crazy she’s just a friend and I would usually listen till now, now that I’m pregnant I know to trust my gut so I looked and what I found only confirmed my worries so we got in a big argument I told him I don’t want him talking to her anymore and that I had a bad feeling about the girl he was playing with the night before too so he went and told his friends who thought my feelings were hilarious even went and added the chick I was worried about to tell her all about or personal problems for them all to laugh about it aside from that anyway I’ve been telling him for the last 5 days to block the girl and he still hasn’t so last night I asked did you block her on everything he said ya I told him no you didn’t ( I just wanted to see if he’d lie to me) he says oh ya insta (like he forgot one thing when in reality he hasn’t blocked anything) then I say Facebook to and he’s just like you can’t contact her on Facebook page I said I don’t care and he said of course you don’t you don’t care about anything (like of course I do the reason I haven’t done shit about all the girls before is because we weren’t having a baby but if he wants to I need him to listen because this is too much for me and I know I won’t be able to handle this well pregnant and might I mention the only thing he’s blocked her on is insta I’ve been asking him for 5 days straight well technically years I blocked her account myself once when they first played because I had a really bad feeling but then he got upset and I told him why and he re added her telling her it’s so funny my girlfriend is jealous of me talking to you she replied ya I have that effect on a lot of woman. My question is how do I make it clear I need this done like I need oxygen to breathe it’s to much but I can’t stop stressing. I can’t get it off my mind. Why is this so important that he keeps her info and I’m worried about overstressing my last baby. I had a miscarriage with and I’m terrified that’s gonna happen again and all because of me because I can’t stop thinking and I already feel so self conscious I don’t want another thing to stress me out. Also, if you managed to get this far. I seriously appreciate you. Love you.❤️