I have been having this pain for about a week and a half now. I just came on my period 03/17/17. Im 37. Im not on birth control and having unprotected sex (Im married). I already have 4 kids and Im almost sure im not pregnant (the youngest is 15yo). Im just trying to think of what it could be before i even call my Dr. or before i can off my period. I NEED have cramps when coming on or during. Could it be the life change? Or something else? Im loss