MIL can't keep it to herself

Just got pregnant again after a miscarriage earlier this year. And I am super paranoid about everything. Already told my MIL not to let anyone know in case something happens again, and also because I am a very private person. And she ACTUALLY shared the same sentiments. But few days later the news has already spread through the entire extended family. And I have not even passed the first trimester yet. Do I have the right to be pissed? I feel as though I'm about to explode already. #rants