I've had breast tenderness for about a month and I've been bleeding for about 2-3 weeks. I thought I had my period and the brest tenderness would subside as well as the bleeding and it stopped for a day or two then I began bleeding heavy red blood for 2-3 days and back to the deep dark thick blood from before my period. It comes and goes and it's bac today. I do have some pain in my lower abdomen, right where my ovaries would be. I had surgery last year for endometriosis, could it be related? Or am I pregnant?