Suggest Remedy For Light Periods

My periods are normally 7 days long first three days are hell. heavy bleeding intense cramping.. but this month my period only lasted three days and the first day was almost nothing the next two wernt as heaavy as normal but still heavy. Then the next day it was done... usually it graually slows down. Breast wernt tender this month either.. and barely any cramps.. is it possible i could be pregnant. my husband and i are tring