Period or implantation?

So yesterday I could have sworn I got my period, but it was a completely different color, super light and really just looked more like discharge than anything. This morning I had cramps, and I was like ok well maybe I just started weird this time. But no more cramps, still a different color and really light. My period is the same every single month since I was 12, so if it's changing it may be completely new to me... I would be 12dpo today. Should I still wait it out or test or doctor? Lol it's kinda concerning me