1st utrasound today @12weeks, after previous miscarriage!!!!!

DIANE
I have my very first scan today after a previous blighted ovum 3 years ago. Utrasounds freak me out since then. Even tho this time , i had more symptoms , no bleeding, im still so nervous that it's going to happen again. Appointment is at 10 30am. I'm praying everything is good, god knows my husband and I want this baby so bad.