Hi and welcome to HCM.
YOu should not ,many women experience this periodicaly and it can be just more intensive menstrual pain
. Some disorders which may be considered are endoetriosis and ovarian cysts. YOu should do vaginal and pelvic ultrasound
levels to verify that. Also check your red count levels to rule out anaemia
. Irregular bleeding is common and usually is caused by horminal imbalance,but as I sadi I suggest to wait and see will pain porgress. If yes, then do tests i ve mentioned. Wish you good health.