AF or Implantation bleeding?

mads :) • mama | pop punk enthusiast |

Hi ladies, af is due on the 16th but I guess she came a little early. Got off BC in October, finally ovulated in November and tracked with OPKS. Did everything by the book and still got AF..I was on the pill for a year and the depo a year before that. I’m sure this is AF but feel free to comment x