Unusual period

Jeanne-Marie

So i started spotting at 9dpo. I figured implantation bleeding but then it went on for 3 days. Got heavier but not period heavy. I managed with a liner. My period is usually 4 days medium to heavy and then just stops. So if it was my period it showed up a week early and was the wrong consistency and colour. Wondering if im definately out for this month. Would an early miscarriage be so light?