Early period? Birth control experience.

I've been on BC for almost a year now I am experiencing light bleeding but it is bright red like fresh blood but only spotting or when I whipe with some cramps. I had to double up and take 2 pills the same day in the first week on my pill pack. I am now at the beginning of the third week, so I don't know what kind of bleeding this could be. My leaflet in my birth control said I would not have more risk of pregnancy. Could this just be a light early period?