It looks like you may be OK per your post. It is important that you sop exercising so that the thc metabolites stop flowing into your bloodstream and then into your urine. Consuming fats is about building up a new layer of fat that any existing thc would have to go through before entering your bloodstream. I would suggest buying some at home testing kits that you can get at any chain parmacy, make sure you buy a "THC" kit, its less expensive. Cheaper still if you buy them on line but I don't think you have time. Since we don't have enough details about your smoking history, its important that you test yourself to see where you stand, remember even a faint line is passing. If it it can be photographed or copied its a line.

I would suggest looking into the dillution sticky and practicing it prior to the test. On the day of your test sub gatorade for water and skip the aspirin, its now outdated. Good Luck.