should i cut or keep

Way to early to tell. Looks like its stretching too.

 

I'd be more concerned about over fertilising and lack of light atm. The leaves looked burned and it has stretched a lot. What nutes are you using? What light have you got? Until you start flower there's no guarantee that it's male or female.

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That's not flowers.
That's new growth.

 

Unless shes 100% old school sativa she really needs more light my friend, would account for the nute burn too, pure sativa are sensitive to nutes... but still too early to sex, some sativa males stretch like crazy towering over the girls makes spreading his pollen more effective

 

Might just be my computer skills but i cannot see an other photos my friend