I don't think you should base your answer solely on this. My periods were like that from mid teens to the time I got my tubes tied. If your not sure just take pregnancy test. But if its a negative girlfriend don't complain! -okay-
My Period Was Light To Moderate And Only Three Days Long. Could I Be Pregnant?
My periods are like that every month. I wouldn't worry about it too much, if you start to skip that's when you worry!!!