Ive had lower right side pain thats kept me up the all night. i am also menstruating, how do i know if the cramps are caused by my period or appendix?

Time for evaluation: Causes of recurrent abdominal discomfort as described may be identified by first addressing signs/symptoms so as to localize the organ involved: in women: vaginal discharge or bleeding, alteration in periods, pregnancy risk? Fever, nausea, vomiting, altered stool pattern, blood with stool, tenderness, distension? Painful urination, blood in urine? Recent trauma, herniation? Stressors? Other risks?