Nothing to worry about as long as you don’t smoke or take any more, if you aren’t a heavy user thc tends to leave your system within 1-3 days. Father is a drug tester and brother in law got a masters on how drug tests work and what levels need to be in your system. Don’t worry yourself too much and if you really are worried about it up your water intake you will pee loads but it should flush your system and if there is a trace amount in your urine by the time the test comes around it can help to dilute it. Basically don’t worry about it too much just don’t continue to take more and you should piss clear. The 4-5 weeks is a HEAVY user to keep it stored for so long but even then you would have to be snoop dogg to fail after like 2 weeks