Male Female

OK my plant is only a week old but it has almost 11 leafs already. How much longer will i know if its a famale or male?

about 1 -2 weeks after you switch to 12/12.

You won't know til you have them on 12/12.

Ivy

^^wut he said.
but it also depends on the strain.
my WW started to show sex during the veg cycle only at 1 month old. different strains grow differently.

4-6 weeks, or until your force flower (12/12), plants do show sex preflowers in veg after they mature properly, in most cases. it's just that most people flower them before that happens.