Hey man, i don't want anyone to click on my diaries I don't care how many people view them. But the re-upload of my very first run (first time vibes it's called I think) is exactly your question. I had the same issue not knowing when to harvest. Was around week 9 from seed. Some wise grower out there told me that first of all, if you're unsure wait another full week. Also, everyone has their own way of judging their harvest time. You could harvest that bud and smoke it and get an effect which might please you. I did exactly that on my second grow that you can find on my profile. I harvested way to early. Also, even though I had effects they were really bad and just not satisfying in comparison to what Ive known from the exact same strain given a bit more time.
I would highly suggest to first of all wait at least another week.
Keep checking the trichomes on the calyx (the parts where the pistils come out of :) ) and not only on the top bud but on some lower parts too.
Depending on your preference, you should aim for some amber trichomes. If you take any picture of calyx trichomes and you have anywhere from 5% to 25% amber, golden trichomes amongst tons cloudy ones , it's time to chop.
Much love and peace my friend, sorry for the huge text xD