Passing a drug test in two weeks?

I'm taking a drug test in exactly two weeks from when i smoked (for anybody that thinks for some reason i'm talking about tobacco, i'm not...) It's going to be lab tested. The stuff i smoked was pretty potent. I'm not fat, but i definitely have a bit of body fat on me. 6'1'', 185 lbs. It's a urine test so no need to tell me that i'm screwed for a hair test because i already know it's not a hair test. I don't know if I'm a habitual smoker, I guess it depends on your definiton but for the last four or five months i've been smoking about 2-3 times a week with a few minor tolerance breaks. Any plausible suggestions on how to pass? Please help because if get caught i'm literally gonna die. Oh yea, and it's not monitored by anybody, but i'd prefer to have substitution as a very last resort.