What does it mean when your period blood is brown? And you are not on birth control pills and you are 15?

What does it mean when your period blood is brown? And you are not on birth control pills and you are 15?
Don't worry. Perfectly natural. Sometimes called "spotting", a very light amount of fluid may come out before or even during your period. It's all the same type of fluid but the more that comes out, the darker it is. Brown just means a light flow
Could be an STD..chlamydia perhaps.
I just had this. And its just in between periods OR it could just be a very very light period.
old blood just taking its time to get out of your system .. completely normal
brown blood is usually old blood or if it is at the end of your period, it's just mixed with other fluids. also clots are normal. if you experience heavy bleeding or a period that last more then 7 days, go to the doctor. hope that helps.
don't worry. it is because the blood is dying. just like when i scab changes brown. i asked the same Q 2 my mom.