9 week plant going on week 11, what may be happening?

After reviewing the site and others grows. The longest I seem was 21 weeks. Your plant looks like it is already stretching. Environment will effect how fast it grows. If you are going inside, and outside with it regularly, that is not recommended. Grow it in one place or the other. I would continue your current schedule with no change. If you go another 3 weeks and she don't have any pistils showing then I would consider light change. At The rate she is going, she will produce a good yield if you don't cut light times to 12/12 ever. Also if she don't start in a few weeks I would be contacting RQS.