bummed a bit cause of my mom

I know it's a little selfish of me cause It is what i make it in the end.. but. i told my mom i was expecting from taking a hpt but said my spouse and I wanted to keep it under wraps cause we wouldn't even get the first ultra sound for another three weeks.. well she ended up blabbing it to my 2 aunts my uncle and my aunty in the first day. she brought my nana over the next day for coffee and just blabbed out loud "so I told nana your pregnant" all confident as I was pouring her a coffee from the pot. and I just felt this huge heavy pit in my stomache. I didnt want to act out and be hurtful towards my mother in front of my nana. it wasnt ger fault she was told and she is 87 years with dementia and deserves to have happy moments when she can remember them.. but I wanted to be able to tell them.. I still dont have my ultrasound till the 2nd and I'm nerve wrecked. I'm not sure how babies condition is yet cause I have not seen my bean yet. I also feel a little out out cause it's my spouses first child and really was excited to do a surprise pregnancy reveal.. now i feel like if i post it it's just gonna have a meh effect because my moms a blabber mouth and my family basically already knows.

maybe I'm hormonal but my feelings are hurt