Well, even a male plant has some thc in it, so definitely maybe. Let it keep going if your in doubt and study up on sexing a plant...you prolly got a couple days before it spews pollen everywhere, and by then, you could be an expert at sexing! Picking off the nads is tedious and no guarantee it won't fertilize a section, but you could wind up with some fem seeds, so it might not be all bad, if it was from decent DNA.