strain is impossible to tell. especially at only 2 weeks, but really, no matter when it is in flowering you cant really tell. i can tell you that it is more sativa dominant, but does have some indica. those leaves are fat. this will make the flowering time a little longer. i am GUESSING that it will take 10-11 weeks to finish flowering. but only time will tell this. that is a big plant good job.
are you using nutes at all?