Sorry to pop you bubble again dude but you are not even close to harvesting these plants. You have at least another 2 to 4 weeks of vegging time before you switch to the 12 hours of light-12 hours of dark pattern that is required for the flowering stage.

You have to wait for at least a week or two after you start the 12/12 before you will be able to identify the sex of these babies. You must have a lot of patience here.

The object is to grow buds/flowers. That is what you smoke to get high. Those leaves you see that you think you are going to harvest will not get the job done.

Go back and read the "Basic Growing" and "FAQ" sections and you will find all of what I am trying to tell you in there. Those sections clearly list what the timeline for growing is. It takes at least 8-10 weeks under the best of conditions and your current light setup is not nearly enough to be considered "best conditions".

just trying to help,
Max Blast