My period was suppose to start around this time but I'm about 6 or 7 days late and usually that's normal for me, I'll around the 6th or 7th day of being late start my period but this time it's different. I've been having brown discharge/blood here and there and cramps, plus really bad lower back pain, super tired all the time and my boobs are a LITTLE bit sore/tender not much though. My period hasn't come at all and no sign of it coming, just brown discharge and blood. My boyfriend and I don't use condoms, we pull out and have been successfully for three years. We have no STDS, so that is ruled out.

But, could I be pregnant? What is the brown dishcharge/blood?