Your plant looks a little stretchy. How many hours of uninterupted sunlight does it recieve? Have you been feeding it any nutes or are you going full organic? You might have a little while left until the plant starts to show sex depending upon the photoperiod you are currently under. To look for sex just look at the nodes and if you see a raised spade shape then you have a boy but if that is not the case then it is a girl.

Happy Toking :rasta: