I've had my babies on a 12/12 for a week now, they are a fast finishing strain (about 40 days to finish flowering) and I haven't seen a sign of sex yet. Now is this normal for a fast flowering strain? And let's say I see sex signs at the two week mark or something do I stArt counting the 40 days from there? Or dose the countdown start as soon as I start the 12/12?