I had a hard time following your post, but if you failed the home test, I doubt you will pass a "real" tests.
I would say negative dilute at the best which isn't passing. You said you already tested dilute and was allowed to test again. I don't know what your test was for.

Pre-employment....I am surprise they let you retake the test the first time.

Anything else.....don't be surprised if you are observed on the next one.

Good luck