Nervous and ultrasound isn’t for another 2 weeks

I’m currently 7 weeks and 2 days pregnant. My first ultrasound isn’t for another 2 weeks (7/19). This is my first pregnancy, so I have no idea what to expect or what is normal. I’ve brought this up in little comments before, but I’m experiencing close to no symptoms. My breast were really sore at the beginning but that has subsided. I’m just extremely exhausted all the time and can take a nap anywhere. I’m also extremely bloated 24/7. Occasionally I’m moody and irritable. I’ve experienced nausea twice but very lightly. The light cramping has also subsided. I’m just worried that this all isn’t real and I’ll get bad news at my appointment. Maybe I’m just thinking too much, but this is a little miracle for us due to period issues in the past so I don’t want anything bad to happen. Anyone else experiencing this or worried like me?