2nd week of flower and still not showing sex

Play a little marvin gaye... or, go the michael jackson/bill cosby route and get'em soused on wine or rufies. even preflowers? those usually visibl within 7-10 days after flip. Vege growth (leaves and stem elongation) continues for several weeks after flip to 12/12. No worries. if giving an "uninterrupted long night" it is in flower phase. little nubs at growth nodes should form first. then one day the growth at terminal will look a little odd, and shortly after that there will be tufts of white pistils all over any bud site.

It takes about 14 to 20 days from light switch when they start showing. As long as the plants are not exposed to light leaks and get 12 hours of dark daily uninterrupted.

"Patience et longueur de temps font plus que force ni que rage" — Jean de La Fontaine

Some show by day 10 depending on maturity but you’ll see it by day 21-25 I guarantee it

Flowers start to show around week 3,4, of 12/12 cycle.