Mommy issues 🤯🤯

I bought a house with my mom and recently found out I am pregnant. My mom is very weird and kind of mean. She’s very jealous of me and can be controlling. I want my significant other to move in with me and that way we can be together. However, she’s just being nasty and mean about it. Do I legally have the right as half owner to let him move in or just visit? I would hate to pay for two places. (Meaning him and I get a house on our own and pay)When I already own a home technically.