if you ended up with seeds, you either got sray pollen or as already mentioned, you had a male flower pop on you and you didnt know it. remeber, you may not have SEEN the flower, but it was there. ive had them open up right in the side of a bud before and never knew they were there until i went to smoke the stuff and found seedz

if i were you, id grow them out. may be some sort of new superstrain cross from some super wild male plant growing on a canal bank or sometin.