off topic - Last day I answered someone's question about identifying sex of their plant, it was a male but everyone jumped in and said "it is too early to tell" but for a male,it wasn't early.There was obviously male flowers coming. That plant will turn out male in a week,I'm following their diary to see the result.I'm talking about someone else,don't worry.
on topic - But here,your plant is the good example of the line "it is too early to tell" . It simply has no signs for its gender,yet. If it is 3 weeks into flowering, it most likely will be a female. Males show up earlier than females,keep this in mind.Although this plant has no clear signs, being 3 weeks into flowering is a good thing. Growers who only grow feminized commercial plants won't know this...