Implantation cramps? Or am I crazy?

Gabrielle

Hi everyone. I’m currently 3 days late on AF. I experienced some dull pains in my lower back and lower right abdomen kinda where my upper right groin is. I googled and saw that it could be implantation cramps. I haven’t had any bleeding and my last period ended the first week of November. I tested last week and got 2 BFN. Am I testing too early? Or should I rule out pregnancy completely?