Anyone else been through this? Advice???

Back story: me and my boyfriends mother use to be very close. She started dating this woman a year and a half ago. Myself and my boyfriend don’t trust her ( we have our reasons ) long story short me and the chick got into a physical fight.

My boyfriend and I choose not to deal with the woman at all. No exchange of words nothing. There has been many back and forths between his mother and I but recently have tried to mend things. Now I am pregnant. My boyfriend and I have made it very clear to his mother that her girlfriend is to have nothing to do with our child, our baby can not go to his mothers house ( her and the chick live together ). But other than that we have no issues and want his mother to be as involved as possible. She seems to be stuck on the fact that our baby can’t go to her house and keeps talking about ‘limitations’, I’m literally tired of her constant FB posts referring to the whole thing and on top of that I don’t even trust his mother because she lies and lies to protect her girlfriend. My boyfriend is clearly stuck in the middle. I just want peace and to enjoy my pregnancy journey which I haven’t been able to do since day one because of arguing. I’m literally tired and just want to shut myself off from everyone and crawl under a rock.

I’ve been going back and forth with the idea of just cutting my boyfriends whole family off because of the non stop drama. I really don’t want to because I know what it’s like to only be around a portion of your family growing up but I also know what it’s like to go through an emotional roller coaster with ‘family’ and feel unloved. I just really want to protect my baby from all of that if I can.