Welcome!
As for the spotting...with my 2nd & 3rd births (each exclusively bf until 6 months-ish) I had spotting months before AF returned. I think in my case this was a sign that my body's functions were beginning the slow process of ramping-up to full function again.
It shouldn't impact your bfing -- but it CAN be a sign that your cycle is beginning to return and you should consider precautions if you don't wish to become pg again at this time.
