Any bfps AFTER af was a week late!?

I’m testing like every other day to see if I can get my rainbow baby. My bf and I DD on Christmas eve knowing i COULD get pregnant. On January 6,7,& 8, I spotted. I never spot, and I never have an early period. My first thought was that it was implantation because it was never constant and never increased in amount. Who knows, might be wishful thinking.

Im now 8 days late for AF and every time I test, I get a BFN. But what I wanna know is if anyone has tested positive after BFNs, after they were at least a week late