How long till plants show sex on 12/12?

Tonight will be night #10 of flowering(12/12) and as of yet, the plants arent showing sex. Is this normal? How long have they been known to go before showing sex?

holy shit deja vu, just in case you didn't read the other should show by 28, 40 is the longest i've heard of.

i think the longest i waited for sex to show for certain was four weeks. though i will say it seems like the girls took longer to show sex than the boys. maybe cause the boys had to get their pollen ready before the girls produced any seed.

your not even half way through, wait and it will happen. early sings,i find helps to sex early, are. males can be taller, more leggy, females are shorter, and if the plants start to grow pistals with like 2 hairs growing. then thats a sign, thats female. but its hard to tell. to the untrained eye. just keep posting pics, ans someone may be able to help.