I'm absolutely fuming but don't know if IBU.
My mum and dad have known for a few weeks about my second pregnancy. Mum has form for being overbearing so chose not to tell her the due date. She has since tried to get it out of me a few times, asking how many weeks I am, what my new week day is and if I will be joining her for odd events on certain dates (that I'm sure she has made up).
Anyway, my sister outright asked me a few weeks ago if I was having another child, so I told her. As it was early days, I asked both my parents and my sister to NOT discuss it with anyone, and definitely not each other. I said it was my news and was early days and didn't want anyone knowing anyone else knew as as soon as they did, I knew they would tell everyone (my mum being the worst for this) so my parents knew but didn't know my sister knew. My sister knew my parents knew.
Last weekend, my sister goes to stay with my parents and I've just found out my mum told my sister about the baby. To me, it doesn't matter that my sister already knew, my mum shouldn't have done it. My sister tried to back track saying it came up in conversation, but I don't see how it could unless you were talking about it, which they shouldn't have been.
My sister has now asked me when I'm telling my brothers and said my mum keeps trying to ask my sister to figure out my due date. Which is very odd.
Aibu to be fuming about this. Not just the sharing of the news but the chat about it, trying to figure out my due date, the high possibility that my mum had taken it upon herself to tell extended family and my brothers.
Fwiw, I'm only 10 weeks pregnant, hense the secrecy. I also don't want to share my due date as my mum kept ringing me daily in the last month of my first pregnancy and would just turn up at the door incase I had gone into labour and needed help. She then refused to meet my new born until a week later as I hadn't told her I was in labour. Just to give you some back story