Implantation

Reba

I am 12 days late and for the last 4-5 days I’ve had super light spotting to where it only shows when I wipe?? The last test I took was at 4 days late and big NEG showed. We are trying and I just don’t know if I should try to test again as I e never gotten my period. Also I’m usually always on time and usually clotting and heavier flow. TMI but I’ve even used a tampon a time or two thinking okay maybe my period is starting but literally only the tip of the tampon will have any blood in it and that’s it.. any ideas or should I retest??