When Can Males Polinate Females?

I've got several adult women about to be harvested, but I've got a few little veggies ready to start flowering, which means I don't know if they are male or female, yet. Are my females past the point of being pollinated and getting seeds from newly flowering plants (if those plants turn out to be male)? Can I let the new unsexed plants flower without the possibility of them breeding with the females?

yea i think it's too late. but u can always collect the pollen from the male when it pops and keep it in the freezer, wait till ur next batch of females are ready and pollinate however many u want. i suggest u look up this technique in the growfaq before u try it.