scared!

Okay so I found out that I am pregnant 11 days ago. I used two tests both of which were clear blue digital tests. Anyways, my first doctors appointment is Tuesday and I'm scared that they will give me a pee test and it will come bck negative. I know the only reason tht would happen is if I have a miscarriage and I know if u have a miscarriage u will have it period, which I still haven't had, but I'm just scared. I have gotten many negative tests before and was very disappointed when they came bck negative so when I found out I was pregnant I was basically in disabelief and this whole time it has still been hard to believe it. Anyone wanna help ease my fears. Maybe tell me ur stories of ur first doc appointment or something? I just need to be reassured 😔 and thanks