Respectfully, that depends entirely on how you're growing and finishing too. I flush 1-3 weeks from harvest and focus more heavily on supplemental carbs and specific non-nitrogen nutrients during that stage.
Photos seem to handle it far better.
Having some experience with autos I will humbly add my 2c.:
Autos, in my experience, yellow toward the end of their life cycle. This isn't abnormal. You're also at week 10, the yellowing you're seeing is likely nutrients being flushed from the leaves and being used in bud production. (Buds...
I moved these three vegging plants from my 2x4 with a single "1000W" blurple. To my flower tent with three ViparSpectra X (1000 x 2) and XS (2000) Q-Boards. The humidity was low in both tents, 40%, so that has not changed, nor has the temperature (72.5F) since I always give a week of acclimation...
Combine 500mg/L L-Arginine, 1mL/L GH Bloom, 1mL/L CalMag (Sensi is my brand) and spray that under the leaves at around 5 weeks every other day for 4 days right after the lights come on. You'll notice a difference. I promise. That particular amino acid can be taken up easily by the leaves at a pH...
I'd personally wait a week but that's just me. I prefer a little more couchlock and relaxation than a lot of other growers (30% amber +/- 10%). Here's a photo I just took of one of my better buds, I think this one's got around 2.5 weeks left or so until I harvest her.
One of my girls, I didn't think to clone her because of her short stature... I now regret that decision. She smells of dark desiel and kerosene with a hint of mango and purple grapes. She's about 6 weeks into flower.
Now this gal looks nice... unknown bag, all that I know is she's an indica. Have her growing as a single cola in a 2L pepsi bottle cut in half.
You know how it is... random grows. This was 12/12 from start.
This is my frostiest this grow. Shes a White Widow auto in like week 5 of flower. She's a small girl, was in a one liter pot until last week. I was testing some low stress training.
The unfortunate thing is, I've got a plant doing that right now. It seems like she's a week or two behind the others but is starting to turn.
Really you just have to keep an eye on trichome color and cloudiness. Majority milky/cloudy, you're only a couple days out in my experience.