So nervous

I will be 8 weeks on Monday. I barely have any symptoms. My boobs hurt but only sometimes mostly at night and it never too bad. I'm more tired than usual but that's it. I had an mc two years ago and had more symptoms then. I'm so nervous something's going to go wrong. I have my first appointment Tuesday and I will get a ultrasound, but until then I'm a nervous wreck. I know not everyone gets morning sickness, I just need some reassurance that it's okay not to have that many symptoms!