Mother telling people about pregnancy

I have repeatedly asked my mom to not tell anyone about my pregnancy as I’m still in my first trimester. She has told several people and does not see anything wrong with it. When I tell her that I don’t appreciate it as we’ve already talked about this, she acts like I’m being extremely rude to her and she is just appalled that I’d act this way.

She did the same thing when I had my first daughter. And when my husband and I decided not to have anyone but us two in the delivery room she freaked out and told me she would never forgive me and that I’m a horrible person and that my grandma would “roll over in her grave if she knew I did this”.

I’m already so emotional and cannot deal with her crap but she quit her job to watch my daughter for free and acts like I owe her my life. Very controlling. Anyone have any thoughts?