Delivery room dilemma... how do I politely say no?

Back when I first got pregnant, my mom just blurted out, “can I please be in the delivery room with you?!” It took me off guard and I basically said, “we’ll see!”

I’m 30 weeks now, so creeping up on that time and I know she’ll be asking again soon. I love my mother dearly and want her to be involved with her grandson, but I’m one of those women that even if the doctor herself didn’t have to be down near my crotch I wouldn’t let her be. I’m a very private person who has always been very guarded with my modesty and who appreciates calm and collected. Again, I love my mom, but she’s sort of the opposite of calm and collected and I know she’d want to be right THERE in the action as she is a previous physician. When I mentioned to her that not even my husband would be down at that end she laughed and said, “When labor starts you won’t care and won’t even know who is down there.”

To me though, that’s beside the point. I might not care when the time comes, but for now, I just want it to be my husband and I in the delivery room if I am lucky enough to be able to delivery vaginally. I know I am eventually going to just have to tell my mom no, but what do you think is the best way to go about that? Her feelings will be hurt no matter what (trust me, she will make it a huge deal about how I hurt her feelings) and she is one that will walk right up to the nurses and ask about the hospital policy on how many people can be in the room.... help. 🙈😫