Trouble sexing..help!!

hey guys,
this is my plant (first one) I've been growing for about two months using CFLs..This was taken about a week after i set it to 12/12. I'm having a lot of trouble telling what sex it is so i'd really appreciate some help!!

males=

that plant has the same reproductive organs as me.....balls dude...try again, maybe clone and sex early b4 2months next time

up your light too man, looks weak n stretchy

nOooOooooOOo that sucks!!

you think it's def a male for sure? I ask because I have two that have the same kind of preflower goin on, so if that one's a male so is the other. I want to try to grow again so I guess I want to get the males out of my room asap so as to avoid future pollenation..
how long does it take for the space the males are in to become pollenated enough to be a problem? is it worth it to even wait a few more days to see?