Last week and the week before I experienced abnormal bleeding. Now, I've got this brown "stuff" coming from my vagina. At first I thought it was old blood, but it's the wrong color brown I think. I'm also experiencing tenderness in my low abdomen and twinges of pain on my left and right side a little higher up. My period is supposed to start on the 15th, but I don't have normal signs of it about to start. Does this sound familiar to anyone?