extremely light period 5 days early???

So I took several hpt tests last week and had a couple of positives but then at 10dpo I started spotting pink. It then turned red but the bleeding is incredibly light compared to my normal af. When she comes it usually like the flood gates have been open. I am only going through maybe 2 tampons a day and then they only appear half soiled. Any opinions? Also I have no cramping whatsoever.