My dad told already!

I specifically asked my dad not to tell anyone else about my pregnancy. I was really looking forward to telling my extended family, but I just found out my dad already told them.

He didn’t understand why this made me so angry. Ladies, I’m looking for a little empathy and advice. I’m being reasonable, right? Would you be angry in my situation? Don’t I have the right to tell people on my own terms?

I feel like this may be the first in a long line of him as a grandparent not respecting my wishes. Advice for how to deal with this please!