Random seeds in outdoor buds

We have all broken up bud that was grown outdoors and had the occasional seed pop up without pollination.. I suspect this is just the female plant making a seed because something inside says its suppose to be doing that. Would such a seed, without pollination, be feminized? Or is it just the result of some sort of pollination from the surrounding world and would make it a random regular seed?

Seeds don't grow unless pollination occurs. Winds, bees, bugs, birds, all transport pollen around. Hemp farms, people growing males. Etc
You would have no idea and neither would anyone else whether that seed is female or not. Unless you knew where the pollen came from. It could have pollinated itself, or could have gotten random pollen from somewhere else.