Q's about harvestin/cloning

i have 4 females sativas (unknown ) and they are allready in the flowering stage for two weeks..i'm very happy cause it's all full of white pistils...
in every lady's branch beging to grow that's what i call ''hapiness''..
so my first question about cloning is , what week of flowering is the best for cloning?
how many clones i'm able to get from each one?
and my question about harvest is , i've been in the flowering for two weeks how many are left for harvest?
Edit/Delete Message

hi cool, the best time to take cuttin's from a female is as soon as she show's her first pestil's,sayin that you can still do it now,but i'd take them off the lower branch site's as not to lose the top bud that will be forming.hope this help's,love an respect SPLIFFBUILDER.