My partner and I found out on Friday what we're having. We decided to keep the news just to family and close friends. My partner's sister has posted a photo of the scan on Facebook, announcing the baby's gender to everyone.
I'm really upset and have asked her to delete the post but she's refused so far and all of her friends are joining in, saying it's okay for her to post it. I'd asked my own family not to post anything and thought my partner had done the same.
AIBU?