My mother in law is scared to go to my gender scan

Destiny
So the other night I was at my boyfriends moms house and she's a wine drinker so she was drunk and she seems to always over react when she is. She said she's afraid to go to my appointment. The reason being my boyfriends brother was expecting a baby and his gf had a miscarriage at 6 weeks. She said she doesn't want to go because she's scared that there might not be a heart beat for my baby. I'm not worried about it because I have been feeling the baby move. How would y'all react to that ?