Question About Pre-Flowering??

Well I noticed on all three of my plants that on the nodes or whatever the two white hairs started poking out, well tonight the hairs have gotten longer and they are a orangish whitish redish color, I was wondering is this good or whats the deal and does this give me proof they are little girls???

yup its a purty good chanse that you have girls

The red/orangeing of the hairs is normal. It thew me of a bit at first.