Male?

@PgrWeedOnly I would say that if it indeed is a male that I wouldnt let the plant get far enough along to produce any pollen picking males for breeding should ideally be done on a larger scale . Picking the first male you find isnt a great way to breed but thats only my opinion mate

Just give it some time, wait for the growth to show you more of what it is. Could be a leaf or a sucker shoot. Good Luck!

If you believe it's a good strain, save it. Let it open naturally and store them on a small pot with really dry silica on it. Mix with flour to apply and get infinite seed.

I'm with @NobodysBuds here... it's WAY to early to tell the sex! All you can do is wait... and if it IS a male, don't try to harvest the pollen as you'll probably end up pollinating everything else you're growing.... Good luck!

you got time to be certain... it's just a tiny androgenous nub right now for our eyes... could be either without a microscope. things don't happen overnight... it takes weeks to develop mature pollen sacs. you'll have plenty of time before that point.

It looks like a dude. I'd personally chop it down and avoid pollin getting everywhere, if you do keep it going just be aware the pollen can stick around and remain viable on the tent walls etc, and if it gets airborne outside you could pollinate any outdoor grows in a large radius. Are you new to growing? If so I'd suggest to get a couple of successes before thinking about making seeds. I'd recommend getting some feminized seeds to take the guess work out, and learn cloning as a good start base. Weedseedsexpress is a great breeder and have excellent genetics. I recommend their AK47. Check out my current diaries if you have time. Good luck whatever you end up doing.