Should I be mad or not?

So I'll be 10 weeks tomorrow with my Rainbow baby! After having 2 miscarriages me and my fiancé decided not to post anything on social media until I'm out of the first trimester. Well my mother in law posted something about it on Facebook and I am fuming about it cause I specially told the few people we have told NOT to post anything!! Should I be this upset over it or am I just crazy and hormonal?! What would you do in the situation?