I just want to point out that the instructions tell you not to read the test after a certain amount of time.

All pregnancy test come with instructions and a certain time limit of VALID results.

I know some say 3 minutes and some say 5 or more but alas this is my rant,

When you throw your negative test away and then dig it out the next morning *I'm guilty of this as well* the results are no longer valid. The gray or brown or dark line that shows up shouldn't hurt your feelings BUT it doesn't make the test defective.

All test come with instructions and a time limit for a reason.