Smoked marijuana up until the end of january.then i had one hit in february and one hit in march and have to take a hair folical in april will i pass?

Not likely.: Marijuana can remain positive in drug screens up to a month and in the hair follicle for about three months but if you have only done random hits the amounts maybe too small to show up.

Likely not: Cannabis can be detected in hair up to 90 days.

May not: In “pharmacokinetics of cannabinoids” by mcgilveray ij it is stated “hair tests are more likely to detect regular than occasional marijuana use. One study found that 85% of daily users tested positive for marijuana, versus 52% of occasional smokers (1-5 times per week). Since you used regularly until end of january - you may not pass.