Please help..

I have a question for all you ladies, the more responses the better. I have irregular periods due to being on the shot, I just sort of got back to normal (I wasn't ovulating but I am now after being on estradiol). We made sure to BD during my fertile time. I am about 7 or 8 dpo, I'm not completely sure when my peak was but I know I was very close so that's why I say 7or 8. I am having very light pinkish blood only when I go to the bathroom, but typical bad period cramping (I also have endometriosis so my cramping is worse than most). So my question is, have any of you experienced this and had it still be implantation? I'm so sad my period isn't even supposed to be here for another week, I've completely given up and just took some pamprin, got my heating pad, and waiting for the full flow to come 😢😢😢