Ultrasound Nerves

7weeks 4 days today. I have an ultrasound later today to check for a fetal pole and heartbeat. I'm so scared that something will have gone wrong. I didn't even want to log into the app today and jinx it. I had one at 5+1 and there was no cardiac activity because it was so early. I'm just terrified that they're going to tell me something went wrong and I lost the baby. It's worse that they don't let my SO back with me to these appointments. What if she tells me something went wrong and I'm all alone? What if she tells me and my SO is back with me? Neither of us could handle this. This is both of our first pregnancy. Please keep your fingers crossed. I'm so nervous. I just know my luck and I know that whatever can go wrong, usually will. Murphy's law.