We have a similar situation here. We don't know if baby is a boy or girl, but my mum is adamant that it's a girl and calls it "her" or "she" and comes up with some terrible names and calls it that. She rang me 2 days ago and referred to it as a girl. When I got off the phone to her, I almost rang DH in tears. I'm just so over it. I've told her to stop doing it, and honestly, when she does it when I'm with her, the look on my face when she says something like that really should deter anyone. Even my MIL has said something!

I'd really like a girl, but I can imagine the bragging. Even more so if it's a girl, born on my mums birthday.

I feel your pain. Can you put her straight? (your friend, not my mum ) Maybe thank her for using her name, but not to do it in a public arena as you'd still like to make the announcement yourself, and want everyone to be pleasantly surprised?