Very dark brown periods
For the past two months, my periods have been a very dark brown color, and the discharge/mucus has been the same color, maybe a little blackish looking. I have been on the pill for 4 years now, and i havent switched brands or anything recently and I haven't taken any late. I've been getting all the cramps and breast tenderness I get every month before my period, but it's really weird how it has changed color. I am due for a pap smear next month in March, so I guess I will ask the doctor about it then, but for now, would any of you have any idea what is wrong with me?