Had the hep b vaccine on 7/24, donated plasma in 7/26 test cane back inconclusive. my doc said he could do an immunity test but for me to wait 2-3 months? im suppose to get my 2nd shot on 8/26. do you agree? this is nerve racking

Next dose OK: Go ahead with the next dose. There is no harm in being vaccinated, or getting the second dose, even if it turns out you have hepatitis B, or had it in the past. Obviously you'll have to hold off on plasma donation until this is sorted out, but 2-3 months doesn't seem too long to wait. And little worry about having an active infection: if you had it, the test would not be "inconclusive".