Am I in the wrong? My mom can’t keep a secret for shit and I’m over it.

Back story #1

My mom (and her family) are very close, they share all their kids business and my mom KNOWS how I feel about my business (pregnancy related) being told.

#2. I have a daughter and she has Down Syndrome (kind of relevant to the story) and I’m pregnant with our second.

#3. I was pregnant before this current pregnancy and it ended sadly, but while newly pregnant at the time, I requested privacy for the first trimester. I hadn’t told my brothers at the time and was planning on telling them my own way. So we’re sitting at the table and she goes “YOUR SISTER HAS SOMETHING TO SAY” so boom. I HAVE to share news I didn’t want to share. Next thing you know, my family knows. She knows i was not happy about this. Then I lose the baby and now I have to share THAT information with people I didn’t want knowing in the first place.

#4. Current pregnancy.

I’m 13 weeks and at 8 and 9 weeks I was in the hospital getting I.V for dehydration due to vomiting. Tonight I found out that she’s told (that day I was In the hospital); my 4 aunts, my brother “cause he needed to know the truth about what was wrong with you” (he struggles with infertility in his relationship and I had my own special way of telling him but that was ruined), her co-workers “cause they just had babies and I was excited to say something” and people from church “because I needed prayers for you” I was very highly HIGHLY upset that she broke my trust and told people my business. For this pregnancy my fiancé and I wanted to keep it between us and our parents until we did genetic testing to see if baby is going to be extra special like their big Sissy or not and felt safe enough to say anything. This was a HUGE thing for me. Because if this baby is extra special as well, I would want to go through it with my fiancé and now I know if I were to tell her about it I wouldn’t be able to trust her to keep it to herself until further notice...

Am I wrong??