It's to much now😩😩

My mother has got obvious mental health issues. Since the age of 14 she has repeatedly kicked me out of the family home, making ridiculous excuses as to why. She has a very controlling personality and at 18 she would not allow me to do anything, i was unable to have my own key, she would often lock me in the house if she didn't want me to go out with no way to escape.

I have been living with my boyfriend since January when she kicked me out AGAIN. I am now pregnant. She was last too know and said she doesn't want to be involved with the baby. She has never met my boyfriend and declares that she hates him. She is trying to tell me to have an abortion which I will not especially at her request. I want this baby. She won't stop texting me abuse, we don't usually talk but she has had a lot to say since I told her im pregnant. She has never been a mum to me so I don't think she should be a nan to my child.

I am still tied to the rest of the family and am close to my sister and grandad. She hates this and will not speak to them aslong as they are talking to me.

Do I cut her out completely? I'm so angry and fed up with this situation.

edit : yes I posted this on another group but so that I can get more opinions this is a really hard decision for me.