Hello. i came on my period on monday and was finished on friday. i normally wear tampax pearl tampons however i used the cardboard applicators. when my period was on the 5th day i noticed a brown discharge which i normally dont have. on saturday the disch

Brown = old blood: Sounds like an irregular period. Brown usually means old blood that has been sitting at the back of the vagina. If this is not typical for you then track your cycles for the next few months to see if they normalize. Often things get back to normal the next cycle. If you feel the discharge continues to be abnormal schedule a visit for an exam