Starting on Monday, (it is now the following Monday) I experienced a sharp pain in my left anterior pubic region, a little inside the iliac crest where ones ovaries would be located. Each following day I experienced the same sharp pain. Now today I have what feels to be menstrual cramps, but I am a week and a half away from my period (I am on the pill and have a very regular cycle). Is this something that could be caused by muscle strain, such as a pulled ligament or muscle, or should I be seeing a doctor?