How long you think i should wait before harvest?

Is this your Blackberry? You're not there yet - maybe another 2 weeks or so - and btw, you obviously had some nute issues in this grow... right now, with those leaves looking like upsidedown ferns opening up, you're giving her WAY too much nitrogen... and the nitrogen levels probably also contributed to the calcium deficiency that was evident in some of your other photos. Nitrogen is not needed in great quantity during flower and too much can cause a calcium lock-out which I think has occured - so no matter how much calmag you give her, she's not able to get at it. Your pH is also much too high for a lot of micronutrients (for example magnesium is not absorbed by the plant if the pH exceeds 6.0)... next grow, try to get it down between 6.0 and 6.5 (if you detect a magnesium deficiency - which is rare - all you need do is lower your pH for a while until the deficiency clears). 2 weeks or so and you'll be in trim jail!! Doubel check the color of the trichs... you should start to see some of them turning amber and you want to harvest when about 10-20% of them are amber... Good luck and good smokes!