I'm going into cold sweats imagining my mother there! Just not a good idea. Yeah, she's done it before, she can tell me everything I'm doing wrong, just like she has done all my life. Great one. I didn't even want DH there let alone some woman I don't even like, just happen to be related to.

As for "only the people at the conception" argument - do you have midwives/obs there? What about IVF babies, should the parents not be present and the scientists there instead? (Sorry, this is a bit of a thread hijack, but just curious.)