My boyfriend and I have been trying to conceive for several months now with no luck. A few years ago I had my left ovary and tube taken out due to a cyst. But still have my right one. My periods have always been regular since I got off birth control. Well this month, 4 days before my expected period I had maybe a quarter size of brown and red discharge/blood so I thought I had started my period but that was it...I didn't have any more discharge. So I decided just to wait for my period. My period was 4 days late. But it doesn't seem like my usual period...very light and still a little brown. I've been having mild cramps and nausea. But my nipples and breast have been VERY sore and tender. I took 2 of the cheap pregnancy tests, but both negative. Could this just be my period or could I possibly still be pregnant? Any advice would be greatly appreciated!