I am taking a combined birth control. On October 1st-October 5th I had a normal period. I have had protected sex a few times this month (October). We used a condom everytime and I have not missed a pill. Yesterday I had bad cramps and the past few days I've been eating a lot (my normal PMS symptoms). Yesterday I peed and wiped and there was brown mucus discharge. I wore a pad overnight and this morning there was a small amount of dark mucus on the pad (about the size of a pencil eraser) I peed and there was brown discharge with a small amount of mucus. Could this be a sign of implantation bleeding or just my period coming? I'm extremley stressed about this and I know stress can really mess up your period.