So nervous

Currently 8w3d. I’ve had a few chemicals and 1 miscarriage at 5w4d. We’ve got my first appointment tomorrow with my midwife for a dating ultrasound. I’m sooooo so nervous. I’m hoping for the best but I’m so fearful. I’ve been living with the “I know I’m pregnant today,” but that might not be true tomorrow and I’m so dang anxious. I’ve been relying on the miscarriage calculator for reassurance but anecdotally I know several people have discovered their MMC at their 8 week appointment.

I welcome any words of advice!!