I'd give that one, another week or two if grown outdoors.
Indoors, some strains don't pop amber untill they are too old.
'Course, some folks like it that way.
I prefer mostly cloudy for most strains.

And even without a 'scope, you can look for headless trichomes.
If you see a lot of missing caps, and you have not been fingering them, it's time to cut.

Under the intense sun of the tropics, a cap on a trich can go from milky to amber in a few hours.
And they can go from fat and cloudy,
to amber, orange, red-brown, brown and shriveled, then tiny, dark, and missing in less than 8 hours.

Cheap microscopes are overkill for this.
Might want to buy a 10X jeweler's loupe and check them daily.
They are only a couple bucks on da bay and quantifying is much easier with a wider field and natural light.

Good luck,
Weezard