I'm not sure. I had cramping for three weeks. The last week was so bad I was crying and couldn't move. I was very light headed, had bad cramps, felt like I was going to throw up and faint. I had to phone into work. I put a tampon in the day before (not the same tampon) but I thoughf it was my period. I was bleeding right through my tampons in an hour for three days which I never do. I'm still bleeding quite a bit. I got my period on the 31st which I was suppose to get it the 4th of September. What do you ladies think. I'm heading to the doctors on Wednesday to see what's going on. I have never had a period that bad