I've been on T for 5 weeks and a day, and I have some dark hairs around the corners of my mouth, and a lot of fuzz around my side burn area.
I'm in the same position right now, I am so excited to get facial hair that I keep contemplating shaving or not. If I don't, they will keep growing darker and thicker. But if I do shave, I will get temporaly excited again that there are actually hairs growing.