I'd bet #1Natty yes.
Something he's taking is shutting him down. I see a few possibilities:
1) it's another hormone and the vial is mislabeled.
2) there's just enough Test in there to shut him down but not raise his levels to supra physiologic or even mid to upper physiologic levels (under dosed like a motherfucker)
3) OP waited way too long between his last dose and bloods to test
4) OP is lying about something (not that I believe he's lying it's just one explanation for the results)