My last regular period was on May 5th and ovulation should have been May 19th. My period is normally 28 days and on May 28th I began spotting dark brown and spotted for 5 days. I am always regular and normally have a pretty heavy period. My husband and I have been TTC for almost a year. I assumed that I was pregnant. On June 1st and again on June 9th I took a HPT with negative results. The past two weeks I have been very sluggish/sleepy, nauseated and on Wednesday, June 6th I started having a piercing pain in my left side. I have a history of ovarian cysts (pain is normally on right side) but this pain has been different and almost feels more muscular and only hurts when I bend or twist at my side. The pain has subsided some in the last two days. I was on a business trip last week and will be calling my ob-gyn in the morning for an appointment. Do you have any suggestions as to what could be wrong? I m assuming I am not pregnant since I do have 2 negative HPT s.