Just got out of the stretch phase and the buds are only just starting to gain size and then weight. I'm expecting at least another 4 weeks or more. You should start counting the flowering days only after a week, and even then the breeder's information regarding flowering time is more like the minimum. Start observing your trichomes daily when the indicated flowering time is reached. Many beginners unfortunately harvest too early before the cannabinoids are at their peak, and I did that wrong too. And don't worry, it's better to wait longer than to harvest too early.