This cycle me and my partner have not used protection!! For 2 weeks I've had period cramps, each day feeling like I'm going to start my period. On a couple of occassions I've wiped and had faint blood but very little and experienced light brown discharge. We had intercourse yesterday and early this morning I had light brow discahrge with a small spot of blood. I've since wiped and had a very small amount of blood in mucuse and the period cramps still present off and on more on my left side. I am a couple of days late and have had negative pregnancy results. I've never experienced this before and I'm slightly worried.