Wow. Thats an interesting plot!
Well definitely her mother and her sister if their close. The best friend might be but only if they are super close, sorta like sisters.
Don't have her father in the room though. I know that a girl would definitely NOT want her father in the room when she is giving birth, they normally stay outside anyway because they don't like the sight.
I hope that I was of some help!
~Alyssa of hermione4lif!