13 weeks and haven't seen the baby...

I'm 13w1d and haven't had any scans yet. My first one is tomorrow, and I'm so worried I'm going to find out there's something wrong or that something's been wrong the entire time. 
It seems like most people have had a scan around the 6-8 week mark and got to see the heartbeat. I feel like if I had seen it, I'd be a lot less worried.
☹️ was anybody else super nervous for their first scan?