here is a picture if a close up.
First fan leaves grow from the main node, then nodes grow from the fan leaves, stipules grow on the the node stalk at the base of each fan leave. Between the new nodal growth and the stipules is where the sexual anatomy comes from.
Without having this last level of growth, you will not be able to sex your plant. Males/females have different growth tendencies, but there is no science to sexing without the final stage of growth.
Here is a picture of mine labeled. This plant turned out being a female, but it wasn't obvious from the anatomy pictured, it is very easy to see the different growths though.
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