Confused! Help me out!

Aunt flow is about a week late. I tested this afternoon and found

(Got this faint line on 3 different tests)

Went and bought more test to be sure. Drank a bunch of water and 3 hours later I tested again and it was negative.

My urine was practically clear though. Would that be because of all the water??

I want this so bad. I'm so scared it isn't real though.