At three weeks Iād be surprised that you even see any milky tricomes.
Youāre only at week three my friend. Unless you have some godly genetics that finishes in three weeks. Which I doubt.
No you still have about 4-5 weeks to go before thatās even ripe. Just based on your diary timeline itās not ready. No youāre also not ready to flush yet.
Keep growing it out. Itās looking good. š¤