home thc test that i got earlyer showed up positive after about an hour

at first after the 5 minutes like it said it did not show anything then i dipped it into the urin and it came up negitive after about 10 minutes into the total test

like an hour latter i passed it and it showed up postive

on this test it said you would get an unacuate reading if you wait longer then the reccomend time

is this normal ?

am i clean like the test first said?