My last period was September 23rd and I haven't had one since. However, I had what I thought was 'implantation bleeding' which only lasted a day. Through blood tests and urine tests, I am not pregnant. It is getting frustrating figuring out what this could be. I am having menstrual cramps every week, but now period. Also, getting vaginal discharge (clear) a lot! What could this be? Also, urination is frequent, on and off swollen breasts, gas pains, and on and off pains down my leg, from my pelvis to my right knee. Can anyone help?