Anxious

I'm 7w2d and this is my first pregnancy. I found out at 3w4d so I've been taking a few tests every week to reassure myself since hubby and I have been trying for so long so I'm still in shock lol. My first ultrasound isn't until next Tuesday when I'm 8w2d. I've been doing a lot of research and I guess I'm just looking for reassurance that the ultrasound will be fine. Have you guys already had ultrasounds? How was the whole process?