Worried

I've never had a miscarriage I've only had one other pregnancy and that turned out great. But for some reason and i think this app is messing up my head lol. I have taken a test everyday just to make sure I'm not dreaming and to see if my line is getting darker. I think I'm obsessed my first appt is tues...but i might lose my mind before then. Me and the hubs have been trying over a year and is just still so hard to believe