pelvic pain?

So I have been doing three months of medroxyprogesterone(Provera) 10 days each month with a period to follow. I'm noticing recently that towards the end of my period I am having pains on and off on both sides of my pelvic region, my period is over now and I'm still having these pains, they come and go but are always in the same spots on both sides of my pelvic areas. Is this normal?? Or a sign of something? Please help