do i have to wait longer than 8 weeks of flowering for mazar kush??

well I'm starting my 5th week of flowering and the attitude seed bank says 8 weeks but it seems like its going to be longer they look like they should be filling in more?? Will they grow a lot in these last 3 weeks I hear once the pistils start to turn the budds really start swelling and no pistils have started to change yet is it common that you have to sometimes wait longer?? Thanks guys

Very common to have to wait longer.... Once all the white hairs have retracted, and it isnt swelling up anymore, then its time to harvest...

I just had some plants that were suppose to be done in 7-8wks that took 10...

The plant will tell you