On September 20th I smoked weed for the first time in years and years. And even when I did it back then It was pretty much nothing. I am applying for jobs and stuff, and I am not entirely sure if I will be required to do a pee test, but if I do how long will it stay in my system? I just barely started applying today, so it's probably going to be at least another week before I get an interview. I just want to know the likeliness of it being out of my system in a 3-4 week period. Biggest mistake EVER to smoke it, I don't know what I was thinking.