I do not think you do "something wrong" internally other than scratching the walls of the
vagina. They say that a G Spot
orgasm is the most intense orgasm a woman can have and I believe it. LOL. If that is the case I would think that our bodies would release more
hormones and all that stuff. All of which can affect your period. I think you should go by the old saying "Better safe than sorry" and see your doctor. If this is the first time your period has lasted this long there might be something wrong.