Birthing partners!

So, my partner and I are finishing up our birth plan and my mother keeps dropping hints that she wants to be in the delivery room during labor. I've said no, I just want him in there, but she won't stop!

I get that she wants to be in there and that she wishes her mother had been there, but I'm not buying it. I don't want the same thing.

Any tips on how to get it through that she won't be in there? I don't want to hurt her feelings and I don't want to cause drama, but I really don't need the stress of having another person in the delivery room with me (I'm high risk and see a fellowship of doctors instead of just one.)

Help!