Long story short I smoked marijuana about 8 weeks ago (4-5) hits. That was the last time I smoked in about 2 years. My hair is about 3 inches long. Will it show up on my hair test sometime next week when I take it since it hasn't been 90 days yet Please I'm paranoid

Unlikely that it will show up if you only did it once in the last 2 years. This test is to test for frequent use. If you only did it once you should be okay.

Do realize that we can only guess. This isn't a definite answer. But the odds are in your favor. :)