No sex yet bro. Gonna be a little while. Are they on 12/12 yet (I'm assuming so since your asking about sex). There are pics here that show the sex indicators very well, look those up.

If they are still on a veg light schedule, you won't see sex for quite sometime if at all--I've heard of some strains that start to accumulate resin in veg, most likely indicating a female.

I don't know how much of this you already knew......just thought I'd try to help out.