Ok so i have a noob question how do you tell early sex of your plants to prevent even the slightest male pollination i do lnow they show balls at one point but wont that possibly be to late any help would b awesome thanks
the way it start's to grow will be different...have you seen good photo's of a male when its starting to grow balls/pods?
A plant from seed usually takes 4-6 weeks to Mature, show sex, then they can pre-flower ,which is a sign they are Ready to go into Flower.
no it won't be too late, as the male still has to go into flowering mode, before the sacks/pods open up to release the pollen, which you should be able to find them before that point.