I'm pregnant but can't stop testing!

Ok. I've taken (don't judge) 13 tests since I found out I was pregnant. At first lines were slightly faint so I kept testing to make sure I wasn't losing my mind. I had my blood test today... but I can't help myself! It's like I'm still in shock or don't believe it's real. I can't even imagine waiting until my first ultrasound... but I know at some point in going to have to stop. Did anyone else go through this? Is there a pee on a stick anonymous support group out there? lol. This can't be normal.