Male or female?

pull it off, use a razor to slice it open, use a good enough scope to look inside... 2 tightly packed hairs or a row of nanners...

These must be seeds from pre 1980s cuz the old girls are always hairy 🤣🤣

I’d give this one a little more time. From this pic I can’t see a preflower developed enough to confidently call male or female yet. The stipules and all those cystolithic hairs make it pretty deceptive lol Once you see either a distinct little ball forming on a short stalk (male) or a teardrop-shaped calyx with two pistils emerging (female), it’ll be much clearer. At only ~3 weeks, waiting a few more days is probably better than making the call too early.

You need more time to tell. I wouldn't speculate, once they veg a few longer they should show themselves. Only other way to know sooner is to send some tissue out to a lab and have them teat it.

Unless they are autos, in my experience, there is no way a photoperiod plant without an altered light cycle would even think about growing sex organs at 3 weeks of age.

Wow, hairy pussy ;)))) definitely retro ;)))) With males , they usually look suspicious from start, here i would bet ( last photo ) is definitely a girl. This year i tried growing my own autos, they were not feminised, i didn't noticed any correlation between girls and boys showing sex, but flowering starts way faster with boys, that i noticed in all gardens . I grew in Sweden, in Lithuania, in forest, in swamp, in garden , on terrace, everywhere boys started first.