This is my first time growing, so bear with me. I'm 7 weeks into flowering and the buds were looking very nice. I was just about to start harvesting one plant (i have 4 total in flowering) when I noticed that all but one of them started growing new white hair tufts on the sides of some of the buds. I was just wondering what this means, should I just harvest now anyway? Did my friend who also grows contaminate them with pollen? Or should i just wait a little longer for these new hairs to also color up? I tried the best to include some pictures, but they're from my camera phone, so i hope you can still see what I'm talking about.