this matters, but it sounds like it's just too early yet. you will definitely see little ball sacs (they look exactly like miniature seeds) when they start to produce. they also come out from various 'nodes' these are those intersection as you put them, all along the stem. being a first time grower, I am into my 7th day of flower and just trashed 3 males I found. So today, I learned first hand precisely what a male looked like. it's too late tonite where I am now, but tomorrow here (ok in about 8 hrs. from now lol) I'll post male pics so you know what top look for. but the green hairs could be either sex. when you see WHITE hairs, and you will know the difference, then that is a female.