Can some help me out ??

Natallie
I'm having a bit of hard time trying to figure this out . Hopefully someone can help ! 
About an hour ago I went pee and I wiped I was surprised to see that I had light pink blood . About 30 minutes later I went to the bathroom to check up on things , and I had a big spot of blood on my underwear , my period is not due for another week. Could this be implantation bleeding ?? Or what can it be ??