Am I close to harvest window?

2 weeks is enough time that some or most of these may be ready anyway. This stuff isn't uniform. I've seen plants 'speed up' at the end that seemd to be slow-flowering varieties... just have to look at that time and you'll know if it's a bit early or not. Speculating now won't help either way if it is a necessary thing. They might shrink up a bit more than normal. May not be the best for bedtime smoke, if you use it to help you get to sleep etc... but you probably won't notice much of a difference if its a few days early.