Smoked on SAT, Drug Test on Thurs

Ok guys, I really really need your help! I am a female, 5'4, 195lbs. I am an occasional smoker, meaning I smoke maybe once a week and just a few pulls. I smoked a 1/3 of a blunt sat at midnight and was just informed that I have to take a drug test at a lab Thurs morning. I bought the Strip from GNC because my friend said that she smokes 3 times a day, quit for 3 days and drank this stuff and PASSED!!! Also, to be on the safe side, I bought a First Check drug test and tested myself today and it was negative for weed (with a faint line). I will prob take the drink Thurs around 5am anyway to be on the safe side. My question are: do you guys think that I am truly negative if I smoked 3 days ago (there was an obvious line)? Should I still drink the STrip detox drink? If I drink water and the GNC drink, will my urine be too diluted? Thanks

By the way, I used the 2nd void of the day...

Hey can someone please answer my questions...my test is tomorow morning....

If you have a line you are fine...

a faint line is a good sign, especially if the void you tested was not diluted at all.

I would make sure to drink a big gatorade when you wake up and try to go a few times before the test. The GNC stuff does not work. Take it if you need the peace of mind, but for such a casual user, I would go with a mild dilute.

remember to fill the cup with a mid-stream flow