Male or Female???

How can you tell if the plant is a male or a female ??? I heard something about how you if it has 5 or 7 it is a female and like 3 and 6 are male. But all the site that i get on say that the only way to tell is wait until you get to the flowering stage and then you can tell because of some white thing??? The males have some green bubble looking things??? But i want the male out before my plants start to flower becuase then it will cause my females to seed and i don't want that i want those pockets to fill with resin!?!?!? or do i ???


HELP ME FIRST TIME GROWER!!!

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