Family photos

Ashley

We are doing family photos of myself my husband and our baby. My parents are coming to be in a few pictures as a large group and with just the baby. Same with my brother. We have no nice group photos even since before the baby was born and no nice photos of us with the baby! My brother is bringing his girlfriend of less than a year but they are very close (practically living together). I don't mind her being in a few photos but is it acceptable to have some family photos without her in them? How would I go about expressing this or should I just let the photographer know?