I know I am late replying to this, being as your test was today. Though I will say that in my opinion you are very likely to pass. You were testing negative 4 days ago.

It is worth mentioning however, that THC-COOH concentrations in urine do not decrease linearly, and work in more of a downward zigzag.
The actual reasoning for this is described in scientific detail here: Urinary Elimination of 11-Nor-9-carboxy- 9-tetrahydrocannnabinol in Cannabis Users During Continuously Monitored Abstinence

However, you tested negative 2 days in a row, which adds to the likelihood that you will stay below positive test result levels.

I encourage you to report back with your result regardless of the outcome. I wish you the best of luck though!