I am bleeding and my normal period is always heavy

I just had posted I think I might be pregnant a few days ago and now I am bleeding and my normal period is always heavy on the first day and this is one is kinds of brownish redish color and it is light should I still take a test to find out if I am pregnant still ? And my head ach are still here and my boobs are still so very tender and my boobs only hurt a week before my period comes and then they stop hurting so should I wait to see if it my period gets heavier or just leave it alone if you cant find what I had posted a few days ago here it is

Think I might be pregnant I started my period on 4/3/08 and was off on 4/7 my boyfried and I had sex on the 10,12,14,19,20,21,26,27 and now I boob are tender and has been since the 20th of this month (normal my boobs dont start getting tender until a week before my periods comes) also when I sleep at night I cant sleep on my tummy becuase of my boobs and in the morning I have sharp pain on the left said of my tummy for like the last past two days but only in the morning so how big of a chance might I be pregnant, I usaully always get my period on the first of the month or on the 3rd of the month