End of week 3 (flowering). Do my plants look like they are starting week 4?

Hi everyone,

I am uploading a few photos here. My plants got off to a slow start..at least I think and am not sure if they look like plants entering week 4 (flower) or are they a little behind in development.

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One of them is very Sativa dominant and that is the one with pretty much nothing there..just a couple hairs.

Would like some feedback. I really hope I can get all of them down by mid march because I have to go away for a few days and that could spell disaster. I am kinda paranoid about the smell, though, none of them are making any at the moment.

I don't see any trichomes yet, but hopefully soon. They suffered a bit of nute burn 2 weeks ago and am finishing off with a final flush now, then I will start with bloom nutes next week.

Also, I think they might have been stressed a little because I did some trimming and one top last week. The Pineapplecrunch grew almost 6 inches in 5 days..I was like WTF? I had to slow it down. At that rate, it would hit the top of my tent in no time.