My last period was April 7 and March 7. I took a pregnancy test on May 2 which was negative and on May 4 I took one and it was positive. Now I am bleeding as of yesterday around 5:30pm and usually my periods are very heavy but I am bleeding red at first it was brown but it is lighter than my normal period. Am I pregnant or miscarriage. I had a miscarriage on Jan 8, 2010.