Telling mom she can't go in the L&D room

Okay, so a little back story. I love my parents, but they have become increasingly frustrating. My SO and I have noticed the constant manipulation, lies, and overall lack of respect for anything we want/feel. We are currently expecting our first child, not my parents first grand kid. My mom is insisting on different things such as having people visit right after birth, which we have already told EVERYONE that we don't want that for at least a week. which we were informed that that's not okay. Originally we wanted her in the delivery room for support, but now we are regretting the idea. She is trying to change our process on letting people know that we are in labor, ect. She seems to be unable to accept the boundaries that we want. We are just very frustrated and are fearing the worst. it's only 2 months away from EDD. HELP PLEASE.