jas23

hi im 23years old. i had my period about 3weeks ago and yesterday i when i used a tissue to wipe myself i found blood stains in it today i put a panty liner on and it was stained dark brown there is no pain, no itch and im not on medication neither am i taking any birth control pills the last time i had sexual intercourse was 2months ago and iv had my regular periods since then. im reali worried and want to know what it could be. thanks