I am 26 year old male and have a hair test coming up 3-18-2013. I am an infrequent user of marijuana, but in the last 3 months I have smoked on three separate occasions. I did 2 hits on two different weekends in mid January and on February 6th smoked a small bowl equivalent to 4-6 hits. Psychemedics is doing the test. I haven't cut my hair ironically since February 6 and is about 2 inches long. I have read that average growth is about half inch a month. Is there any chance in hell I go undetected?