If you get seeds off the autogrow, what are they?
Plant it and find out.
I would add that unless you had male plant around likely to go hermaphrodite.
All seeds are feminized, should all be female plants.
So you likely had a plant go hermaphrodite and pollinate itself and/or others around it. Seeds created from hermaphrodite can carry that genetically to offspring. So there is good chance the seeds you’re finding will produce plants that will also go hermaphrodite.