Am I fucked?

Hey all, I am on probation and currently get egt urine tested twice a month randomlly. Yesterday, I was at a party, on a balcony, smoking a cigarette, when a friend of mine pulls out his pipe and puts in some fairly potent and fresh weed, most probably with a high thc content. As my freinds were smoking, I stated that I missed the smell of weed, and asked to see the pipe. After getting handed the pipe I took a little sniff with my nose on the burning bowl where the weed was. I intentionalyl did not try to inhale, only smell the weed, but seeing as it was burning I most probably took a tiny microhit of it, though I did not recieve any buzz/high from it and am possibly just being paranoid. I know second hand smoke of weed does not trigger enough thc to trigger a response, but I put the bowl within half a foot of my nose and kinda gave it a quick little snort smell, before realising the stupidity of my action, and quickly exhaling with my nose forcefully.

I know there are factors that determine how fast a person's body cleanses drugs out of it, so here is a list of facts that may help in answering.

*18 year old male '5'7 205 plds but lean not fat (13% body fat, currently bulking to enter a bodybuilding show). Metabolism is most probably fast and can lose weight fairly easily with no exercize at 3k calories a day thanks to the bulking upping my metabolism.

* I drink several galons of water a day, and plan on upping that even more until I get called, also mixing in gatorade.

* I have physical activity that causes me to sweat heavily 3-5 times a week based on the week, and plan on implementing possibly time in the sauna and more cardio to clenese my system faster.

*Currently Prescribed Vyvance 70mg, which I would assume helps my metabolsim as its like addearll/amphetamine based. Also I have an empty prescription bottle of ambien, could either of those mask the thc/give off false results so I can blame it on that?

My question is, would simply smelling lit weed with no deep inhaling cause me to test postive? Do most urine tests test postive simply for ANY presence of THC, or does there have to an amount that actually constitues a hint. Can THC levels be measured by amount or is it a "either it's in or not" thing (should I get caught I plan on telling the truth and pray for sympathy)?

Please respond with the worst case scenario that you think is probable and other actions I should do. Do EGT tests (sent to the lab) find all the cleansers? has anyone been in a similar situation? Please... i'm freaking out because I am probation for a felonious crime, so if I get caught, it won't just be 6 month's added on like most people, I will most probably be going to jail.