Harvest autoflower so soon?

Autos are all I grow and I love them! But they CAN be troublesome, especially to growers who like to tinker with this, that and the other thing... for me, they're pretty straight forward... I agree with @Roberts in that you seem to have given it too much nitrogen in the flowering stage... they need a trace of it, certainly, but they really need a lot of potassium and phosphorus as this is what will boost bud development. Too much nitrogen in flowering can and often does cause a calcium lockout... but you have no problem with that deficiency so no worries! Just making a point. That being said, you have what you have.... I don't think you're quite ready yet as I'm not seeing any signs of fade in your plants... you might knock off any component of your nutes that has any nitrogen in it (your Maxibloom is the only one you're feeding them with nitrogen and it's got a lot) and run with that for a bit... As for the trichs, you'll want to see about 10-20% turn amber before you harvest so you might have another week or two if they're all milky at the moment. Don't wait much longer... the more amber they get, the less THC they'll have and the more disappointing your smoke... Good luck!