Signs of early growth after a FUE hair transplant?

Hey guys, I had an FUE transplant 6 weeks ago whereby I received 1500 grafts to fix a receding Norwood 2 hairline, and to lower it a few centimeters as well. I've gone through the shedding phase where about 90% of my transplanted hairs have fallen out. But recently, I've been noticing tiny, white/clear hairs sprouting where I received my transplanted grafts. I've been using minoxidil since the 2nd week post-op, and was just wondering if this is a sign of early growth?