Midcycle bleeding can be common when taking birth control. How long have you been on this birth control? You can talk to your doctor about changing the type of pills you take and finding one more suited to your body.

I have been taking birth control since November 5, 2007. I usually take them around the same time every night, but last month I missed a pill and took it the next morning when I realized I had forgotten the night before to take it. I usually have a one day period. Two months ago, it was really light, like almost nothing at all and this past month I have had no period. I am a little over a week late. But the catch is, that I have taken like 6 home pregnancy test in the past two months and they are all negative. I have been really tired lately, so that is why I am concerned. What do you think?