my period has been irregular since I went off BC and TTC in july 2014. I missed my period for about 3 months and seen a dr which prescribed me a pill to start my period. After that my period was at a 35 day cycle. This month I had very light spotting just occasionally when I wiped around the time my period was due but nothing more. A few days after it was due my lower abdomen began having twitches this went on for over 24hrs straight and now it occasionally will twitch. Now im having lower back pain like right at the sciatica nerve. ive taken preg test and they have been coming back negative. I have only used cheap tests.