Spotting between my period

So I was originally 4 days late on my normal period then I started spotting light pink the 5th day and I thought implantation then later on the day it got bright red and I thought ok my period but the next two says it would go back to pink spotting and back to bright red and this is really confusing the crap out of me cause I never ever experienced this with my normal period and I don't know what this means, do anyone knows what this means