Why no flowers?

She just seems to be a long auto. She looks very close to pre flower, I wouldn't be surprised if you didn't see lil hairs coming up very soon. Ah she's an auto so idk y you'd flip her. She definitely had ruderails if she has grown that fast. But, if she hasn't flipped soon, you can always lower the light timing of keep it at full tilt and block out a part to see if she throws of pistils, just an idea, but she has to have RE to have grown that quick. I see pistils soon. But you'll know in a week or so if she hasn't throw out hairs you might have a female so try block out a part that is just about to throw out a new node set. Good luck.