Cross pollination?....outdoors

over this summer i had put 4 female clones into my outdoor site nestled in a small little forest. after harvest 2 of my friends have found numerous beans.
If something other than cannabis pollinated these females are these seeds still usable?
Is this possible?

nothing other than cannabis can pollinate cannabis so next year look around you area you'll find a grow or wild weed

did you have any herms or catch a male late

nope i catch all my males early,
the thing is my grow site is nestled in between like a cooperate park and a mall lol.ill look around

I was reading some were that a plant sence that it is the only female and will herm it self. So it can grow the next year I found 1 seed and only had that spot just a thought.

ya the plant tris to save it self thats why they herm