Still feels unreal!

I found out I was pregnant Thanksgiving day but the day before I had a vvvvvvfl and I could only see it when holding a light behind it. I took a digital the next day and it said pregnant 1-2 weeks. I couldn't stop testing so I kept taking the dollar store cheap test and the line was faint and I got really upset because I kept thinking it was going to disappear! Well tonight I gave in.. I'm at work and I couldn't get it off my mind! I couldn't be happier! Its real :) ..... Why is it I can't stop testing? Its like I have to see a positive everyday or else I'll go crazy lol