TMI maybe..

So today I am 6/7DPO and (we are on vacation) I went I use the rest room and when I wiped there was THE SMALLEST speck of blood. It wasn't bright red but it wasn't brown either. It wasn't a streak, but I literal speck. With my last pregnancy I had no idea I was pregnant until I tested. What could this be? Is AF showing up really early? Still have 8more days until I can test (according to Ovia)