mother vs boyfriend

My mom and bf DO NOT get along. my bf and i have been together over 2 years now but bc knowing judgemental my mom is I never let them meet and i kept the majority of the relationship from her. I became pregnant and had to break the news to her. The pregnancy only lasted a few weeks and I miscarried. My mom has now known my bf for a few months and they refuse to talk to eachother or see eachother. My mom is now telling me if i ever see him again that I can move out of her house and she wont be in a defected babys life. she believes that i miscarried bc of my bf syndrome. she is giving mw no choice but to leave her but i do not know what to do. any suggestions?