About two weeks ago I began having severe, sharp pains and cramps in my side. While it was mostly in my left, the discomfort continued over the next several days, occasionally alternating sides. I am still experiencing these cramps, except now they have been affecting my lower abdomen, pelvic region and upper thighs. They feel a little different than period cramps. Any idea what this could be? My last period started on June 23, so I am expecting the next one any day now. Thanks.