For the last three, maybe four, days I have had sharp pains, alternating in my ovaries. This happens very frequently, but usually not to the point where it feels as though my ovaries have been skewered (how it feels now). In the last two days, the pain has switched from left to right and back. My mother had a hysterectomy at 35 due to endometriosis , which worries me. (I would like to try to get to my doctor, but I work every day. (Also, I have taken a few pregnancy tests , none of which have come up positive.))