Scared for first ultrasound/scan!

Hi ladies! I've got my first scan on Monday & the nerves have well & truly kicked in. My last experience of a scan was in March when I was told at 8 weeks my baby didn't have a heartbeat. I'm petrified. Felt confident about this pregnancy until now, I'm scared there's going to be nothing there at all or no heartbeat. I'll be 6+6 on Monday. Know you ladies understand how it feels. X