My mom told everyone I was pregnant

I’m just over 13 weeks. I told my mom at 10 weeks because our relationship is wonky and she has a history of being verbally abusive when she doesn’t get her way. I made it a point to let her know that this is not her baby and not her pregnancy to announce because she immediately starting planning on how she was going to announce. She said that I at least need to tell my 7 year old brother and my grandma. I told her I will tell them at the end of the first trimester and she got upset at me for saying that. She told my brother anyways which ended up being an awkward “how did that happen?” as well as an excited phone call from my grandma I wasn’t expecting.

I called her out on it and she said that it just “slipped out”. At this same time I got a scary kidney infection and all she wanted to talk about was when she could announce on Facebook. I told her that I wasn’t focused on her Facebook post and I didn’t want anyone to post if I hadn’t. This didn’t stop her from telling everyone and their mom that I was pregnant and my phone was going off constantly, even late at night. I check Facebook today, because I’m not on often I missed her post that I wasn’t even tagged in. She did a whole ass pregnancy announcement. I was shocked. After several times telling her no she did it anyways when I was exactly 13 weeks. She didn’t even text me that day.

I called my stepdad and he told me it’s their right as grandparents to announce their great news and it’s selfish of me to not let them. I told them it’s not their baby to share and it’s not their choice to announce anything especially without telling me so early on. I was called unreasonable and that my baby will end up hating me for not letting them post them. I just hung up because I can’t understand that thought process and I’m not interested in hearing anyone say my right as a mom doesn’t matter because it’s their grandchild. I never said they couldn’t post I just said I wanted to do it since it’s my pregnancy.