On a side note, menstrual cramps are supposed to feel, at most, like sore muscles after a workout (probably since they’re essentially getting a non-stop workout for a week). Sharp, especially debilitating, pain is a cause for concern and should be addressed, however doctors usually don’t care (plenty still think the cervix doesn’t feel pain), and medical research is notoriously behind, case in point the relatively recent study that looked into how endometriosis affects the male partners of the person having periods.