Problems with sister

Lizz

I am 32 weeks along. Getting married next week after 3 years of dating. My fiancé saw a text not meant for him from one of my sisters (all 3 sisters are bridesmaids). The texts were between my mom and her. She was talking about how she thinks we are going to fail as parents because we are always scolding our dogs, mostly just trying to keep them from barking. And she was also making a bingo card with spots on it involving me “getting post partum depression” and how “new daddy will leave”. 5$ buy in to play the game and I get the pot. What on earth do I do?!