Miscarriage?

This is my first pregnancy I am 11 weeks 5 days and all of my pregnancy symptoms are gone. I used to have slight cramping every couple days since I was about 5 weeks pregnant... heightened sense of smell, tiredness. And all of that is just gone! It’s been about 2 days since I’ve had any symptoms.. I don’t know if I had a miscarriage or my symptoms are just going away because I am almost in my second trimester.. I have an ultrasound in 5 days. Should I call my OB/GYN or wait it out? I need some reassurance!