Can you tell me which strain it is?

If you grew this from seeds you purchased, look at old receipts and count seeds in packages then make a list of possibles. If its a clone you bought, go look at the store front and maybe it will jog your memory what one it was. You are the only person who has the tools to even remotely scratch the surface on this question. no one can do this for you and the chances of it being solved are slim if your asking the question and have not already done some form of looking like suggested above. In the end its still weed, if you think you'll like and scared of not having it again, clone it out should it be a photoperiod. Autoflower? Shit Outta Luck I'm Afraid. Good Luck!