Letting a photographer in but not your mom?

So this is my 2nd baby and the only person I want with me is my hubby. I want labor pictures and birthing pictures also, but I don't want my mom in the room. I want professional pictures while giving birth and shortly after. Is it wrong to hire a photographer to be in the room with me and my SO and not just let mom take the pics? I really want someone in there who isn't gonna talk to me to do the pictures. Just to stand out of the way and document it all in photos. What do y'all think?