So nervous

I'll be 7 weeks tomorrow and at 5 weeks 5 days I was told I have a large subchorionic hematoma. I have an ultrasound tomorrow but for some reason I'm so nervous about it. I know I'm probably freaking out for no reason, but after 2 miscarriages I'm just so on edge this pregnancy. I have no cramping with the bleeding and it has turned mostly brown but still scary. Anyone else in the same boat?