did you originally grow a male in the same room as the female you got right now?? You harvested your bud already right? so, maybe its possible that your plant had one rogue pollen sack and it pollenated your one lone nug that had two seeds in it. I dont know how shit like that happens when its only like one seed or two, so im just kinda pissin in the wind here, lol.
Either way, its only two seeds, if it was some dank shit, then you got some dank ass seeds, and if there was no male plant around to pollenate your fem, and she ended up doin it to herself, then those two seeds are feminized seeds man. So theres an upside to everything, lol.
-k1.