Who's in the room??

Okay so my fiancé and I were talking last night about who should be in the room when I deliver (assuming I can do it naturally) and he said that unless I really really want my mom in there, he doesn't want anyone else in the room except the two of us. I don't know if I want her there or not! I've always been a really conservative person when it comes to what I'm willing to expose (emotionally and physically) so my mom (though obviously she's seen it all as I was growing up) hasn't seen a side of me that I didn't want her to see since I've been old enough to control it. We've never been very close, until I got pregnant and now she's trying. She kicked me out a year or two ago because she was always at her boyfriends house and I called her once looking for her (she didn't come home and didn't tell me she wasn't coming home so I was worried) and she got mad that I interrupted their time together. So we fought about it and she told me to leave, so I did. We fought all the time, about everything so it really was for the best that I leave but I have a hard time not holding that stuff against her still. Not to mention, he drug use took precedent over everything (food, clothing etc) so I went without a lot as a child and teenager. I'm just not sure I want to expose myself to her like that again after everything she's done. But I don't know how to talk to her about it. (This is of course assuming she even asks to be in the room. If she doesn't ask then I'm not gonna mention it). Am I in the wrong here though? Am I being unfair to hold this all against her?