I last had sex in the beginning of August and my boyfriend and I broke up not to long after. I got my period regularly at the end of August and September at the right time. I am on because too. So I got my period regularly. This time (Month of October) I had brown discharge during the time of my period and have not been sexually active since my boyfriend in the beginning of August. What can this mean??

Infection, hormone imbalance, dozens of things. If you don't get a period, you can wait a month and it may return to normal, or you can go see your doctor