AF or Spotting

EJ

I’m 12dpo , started spotting on the 6th had a ton of cramping and back pain leading up to AF. When I wipe I have light pink spotting but yesterday and this morning there’s no sign of AF. 🤷🏻‍♀️ could this be implantation bleeding or just AF acting funny? I tested on the 5th , BFN. should I even test again?