Same here right at the end of week two it slowed done and threw out her first couple of pistils, this is the first time I grow an auto and I almost feel like its growing a regular seed on a 12/12 schedule because from what everyone says plants still have around two weeks of vegging when you make the flip to flower, thus the end of the "stretch" but with that being said mine was around 6 weeks a few days before the 7th week. I think either george seeds or jack vault said it finishes around week 8 but me, I always let em ride out an extra week just to be sure I get a good couch lock effect that I really need for ailments. Another good tool is a microscope, check out the Color of the thc. Good luck brotha man.