Lookin good bro, i woudn't know what strain that is just from pics, can you share more details, like if it has a sweat or spicey smell as it would help give an idea of what starin it miht be. Looks like you have around 2/3 weeks left untill harvest, you can ussually tell when to harvest when the pistols turn red/brown 80/90% overal on the plant, but to be acurate by a 30x micro magnifire and look at the thc, if it is clear then it is not time to harvets but if it is amber colour with mushroom heads formed... then it's time to cut the baby down. Keep up the good work. I have the sae problem too, i have some bag seeds and they have grown into big pink sativa plants... would ove to know what starin it is tho lol