Howdy, Neo.
How old is the plant? What strain? Nutrients? What is your light source? Are you giving it darkness? It looks like a transplant to a bigger pot is in order.
I have a plant on a south facing balcony that is only now getting any direct sun, and only for a couple hours and only a little bit. As the days shorten and the sun drops, the plant will get more. I'm going to set up some sort of flowering chamber in my house that I can bring my plant to when I decide to go 12/12. I have no idea what will come of it.