Three days prior to your scheduled U/A, take one more home THC test again using the first-mornings urination. If youre consistently testing negative on the first-mornings urination, youre good to go.
Is it possible that the marijuana is just sitting in my fat and will later be excreted in urine?
Not if youre routinely testing negative under a condition where THCA concentrations would be at their highest (the first-mornings void).