It's real close.
I would say a week or so to go. make sure all the pistils are brown, and she should swell just a bit more, so the leaves seem to dissappear on the upper buds. It should be getting tight, and the trichomes should be 1/3 amber if you prefer.
Once you see the end product, and it is fully mature, you wont ever forget what you are looking for when it comes to harvesting.
My two cents. Other's will have thier ways to do it as well. None of them are wrong, just different.
Eek