Someone else ruined the suprise.

Yesterday we had our family thanksgiving and my sister in law ruin our pregnancy announcement to my parents. My daughter was wearing a shirt that said big sister and she read it. Said congratulations. I told her to not say anything because my dad didn't know yet. So she come up to me and asked really loudly, " how far along are you then?" So my step mom blerted out omg your pregnant and thats how my dad found out. I'm not to mad but everytime we told they would blurt it out to everyone like my mother in law blasted it on facebook the day we said something and i never got to announce it. I wasnt planning this pregnancy but so far it seems like everyone is ruining the suprise for me to announce. When i told my grandparents they said they already knew from someone else. Also apparently i have one person on each side of my family who has the exact due date as i do and no one generally seems excited for me and just brushes it off. Sorry for the long rant. It just isnt going the way i wanted it to.