well i didnt klnow u had a test so soon sorry...i was just giving u FOR SURE times...it IS possible to be clean in 7 days from ONE time smoking... i am 5' 9" and about 165lbs... i took 2 hits ofg a blunt a while back when i was COMPLETELY clean and tested - with a home test within 7 days...everyone is different..and its better to be safe than sorry....