So, for the past 3 days I have been experiencing brownish pinkish discharge. I usually get it like 2 days before my period, which isn't for another 2 weeks and my period is pretty regular. I had unprotected sex the 4th of August but my period started the 7th and i had another regular period that started on the 6th of September. So i highly doubt that i'm pregnant, although i have heard that some girls get pregnant and have what seems to be regular period. Please, if you have ANY idea what might be causing it, it'd be greatly appreciated. Also, I've been running a lot lately...could that have something to do with it?