Hello, I have had normal heavy periods and this period first day and first time ever a little bit of brown blood came out, then it stopped then the second and third day is was light, sorta normal then the fourth and fifth and sixth and now the seventh day, been nothing but brown stuff, when i stick a qtip inside dark dark brown stuff comes out, my period has never lasted for more than five days usuanlly goes off fourth day. i have unprotected sex with my boyfriend for two years now.. what is this brown stuff and why wont it go away?