Pregnant and pissed!!!

So I'm 20 weeks pregnant and today I had an ultrasound to make sure the blood test were right about the gender. It was right and we are indeed having a girl. Well my mother who seems to not have common sense not only posted all over Facebook the gender of our baby WITHOUT MY PERMISSION, she also revealed her name. Which I was saving until after she was born. I wouldn't have been as pissed off if the fact that me and my husband got married and had a private ceremony was ruined by my grandmother who I told in private