If your pelvis is fractured, you would not be able to walk. Do you have bruises? Take pictures and call the police. No one has the right to put their hands on you.
How do you tell if you have broken bones? My hips feel like there squished together, can you do that? If there's enough pressure applied can you squish your pelvic bone. I have been really sore lately and it hurts a lot, do you know how you would tell if there's damage internally like to your reproductive organs or not? Well they've been coming here for a long time I've told on them before but no one believed me n I got in trouble for it.
I think you would probably experience broken bones before you would have internal damage. But if you are in a situation where people are hitting you in the hip area and squeezing your hip bone and it hurts you, that stress alone could cause your periods to be irregular. Why are you in such a situation? Are these family members and you are unable to get away? Is there nowhere to turn for help?