[RooRman]

At two weeks of flowering you should be able to tell the plants sex relatively easily. Look at the top, if you see white hairs, it's female. If you just see more green little balls forming, and no white hairs anywhere to be found, then it is male.

Also, CFL are fine for veg growth, but they will produce thin whispy buds if you flower using them. It doesn't really matter how many you use either, it's just not the proper spectrum of light for flowering. Perhaps you could switch to a small HPS system for flowering? There is still time to make this change.