your at day 3 of 12/12. if theres no pistils yet, then i wouldnt even consider it day 3 of flowering, more like day 3 of sexing. once you see pistils/balls, i consider that to be day 1 of flowering. add 60-90 days... harvest.
some plants will show gender during vegetation, meaning they are ready for flowering, if that happens, switch the lights, and after about a week of transitioning, they start to 'bloom', with first buds visible another week later.
currently, mine showed pistils before the bloom, i changed them to 12/12 about 2 weeks ago, and im starting to see buds (really its just a lot of white hairs). they will look like balls of nothing but white hairs for a little while, then they fill in with green, then grow and grow, and swell, then darken... swell some more, the plant looks like its gonna die (the fan leaves wilt, etc...) then around that time, its close to harvest.
sit back and wait