Hi

I too am having my sister and DH as birth partners.
I didnt think of my Mum at all - we have a good relationship, but i would just feel really uncomfortable about her being there...
She didnt ask, but when we were talking one day she reminded me that my best friend had be mum there as her support.
I did feel awful, but i also figured that this is something that i am doing and seeing as i am planning other aspects of the birth, i should also have the right to decide who is there or not.
I had a bit of a chat with her and explained that i didnt really feel comfortable with her being there, but of course i want her waiting in the wings and as soon as i delivered i want her there... I was worried about diuscussing this with her, but she took it really well saying that it was something that was really personal and special and that she was fine with that.

It is really tough, but maybe the best way is to have a chat with her and explain that it is that you would feel uncomfortable in that situation - i know that you dont really want advice so ignore me if you like!

Goodluck