Delivery room drama! Any advise helps

Sierra
I need help. How do you break the news you don't want your SO's mom in the room. I'm a very modest person. I don't even change in front of my sisters or husband or anyone. I know I have sex with my husband and yes I'm the lights off TV off kinda girls. I plan on having an all natural birth and I need to stay focused. I never had this problem with my first because I was a single mom and BD didn't have any part of labor or my pregnancy. Any advise helps