Hello. I m 15 and not sexually active. I ve had my period regularly since the first time receive my menstrual cycle. About a month ago I noticed I my vaginal discharge was not clear/white, it had been a black-brown. I assumed it had been left over blood. A couple weeks later, still had been a dark black-brown. I did further research and I learned it had been my reproductive organs shedding or doing a bit of self cleaning. It has been a month now and I still have a black-brown odorless discharge. I cannot determine what s up. I do not know what to do. Help please? Thank you.