First grow with White Widow

Hi all

This is my first grow, an i am near the time when i should be starting to flush.

How should i know when this should be am 6 weeks in to flowering.

I am worried that i don't start this to soon or late?

using an NFT system an using canna products through out.

Regards

need some pics to make good guess but most strains run for at least 65 days. This number gets higher with any kinda stress to your plants. Look with a magnifying glass and compare to chart. What percent are clear? cloudy? and amber?

Check it out and let us know.
Also put up some pictures.

cheers will get a magnifying glass an check