They look great. Wouldn't even consider harvesting them currently, wouldn't consider stressing them either. I swear, if you harvest that stuff in a week, I write you off too.
A friend of mine has very similar looking autoflower indica-like plants, so I'll be checking this out. I'll try upload some pictures of his plants soon (older than yours, much bulkier/larger, incredibly saturated, outdoors but in a 20l pot).
Don't harvest too early dude, patience is key (check my diary), you could get double the yield and potency (not just THC, but CBD and CBN and the other 70 or so cannabinoids too...) with a bit of extra waiting time relative to your current growing time. I have some pink/red pistil plants too (though not autoflowers, they are monstrous. Check out #24 for a panama-like pink pistil plant).
The cover pic for my diary is from a panama-like pink pistil plant, the density is insane.
Here are some pics of it:
https://growdiaries.s3-accelerate.amazonaws.com/static/post/photo/19262/961588_african-bagseedscustomsativa-dominant-hybrids.jpg
https://growdiaries.s3-accelerate.amazonaws.com/static/post/photo/19262/952365_african-bagseedscustomsativa-dominant-hybrids.jpg
Not kidding, those branches alone probably weigh close to 500-1000g.
Good luck...patience is a virtue.
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