Not really much you can do now except find out the cause. Look high and low for the open pollen sacks on the different plants. If you find the female that hermied, take it out before it releases more pollen.

I would grow them out so that the seeds are mature and easier to pick out of the bud. Nothing worse than immature seeds, which are almost impossible to get out, and will snap, crackle, and pop when smoked. Plus smoking them gives me a headache.

Obviously the buds won't grow to their full potential, but IMO it'll be better than 2 months wasted for nothing.

Would do some more research on the breeders of feminized seeds before buying them again. Plenty of info out there if you just search around the different boards. Some are good, others are notorious for herms.