I have been on clomid due to irregular ovulation. I had my period last month exactly on time. This month I had different symptoms including fatigue and sore breasts specifically on the sides. My cervix is still high, a bit more firm on the side but soft on top. It seems like it has remained high since ovulation, never noticed it lower. I had a blood pregnancy test done on Monday, two days prior to expected period, which was negative... so I expected my period to start on time on Wednesday early morning. It's now Thursday night, cervix still higher, still sore boobs, and no sign of period yet. Anyone else experience this?(learn more on Glow: https://glowing.com)