miscarriage anxiety?

Ha
Hi everyone .  I was wondering how you all deal or dealt with miscarriage anxiety, especially between ultrasounds? I had my only ultrasound at 7w4d and found out I had two babies with healthy heartbeats hat were measuring on track.  Now I don't have a second ultrasound until I'm 13 weeks and it's so hard for me to worry that one of them could have stopped growing and I would never know. I can find one heartbeat on my Doppler I have so I know
I've got at least one healthy babe in there but I'm just trying to ease my anxiety for the next three weeks while I wait!