Would you be mad? My sister did the one thing i told her not to do.

Would you be mad? How would you handle this? I found out a month ago I’m pregnant and agreed with my bf that we weren’t going to tell anyone at LEAST until the first ultrasound if not longer because our last was a miscarriage and we just overall weren’t ready to tell anyone. The one person we did tell was my sister (who swore on our dead dad not to tell anyone else) we only told her because we wanted her to be the gender keeper, I was gonna find out early by blood work. I told her to please please please not tell anyone and explained to her why etc. Comes to find out, my other sister text me just casually talking about me being pregnant and when I asked her how she knew she said our sister told her (the one who swore not to tell.) long story short literally everyone in mine and my bfs family all know now and we didn’t get to tell single person. Even our parents know. I’m soooooo upset because for one like I said we were NOT ready for everyone to know yet and I’m also upset that we weren’t the ones who got to tell everyone. On top of everything I’m so scared I’m going to miscarry again and if I do I’m gonna have to either go around telling everyone we had another loss or deal with everyone asking about the baby after it gone. She was the one person I thought I could trust with that information and now I regret telling her. I just feel like she ruined the entire point of us waiting to announce it because now there’s nothing to announce. I don’t want her being our gender keeper anymore and plan on just finding out myself so that’s ruined as well. I’m honestly very upset and don’t know what I should say to her I keep texting her but she won’t even respond to me she’s ignoring me. What should I do? Am I overreacting or would you be mad too?