I had a c section 7 months 14 days before and Tubectomy is also done,, 2 days before I got my periods, before starting of periods I got slight pain in my back and slight cramps also,, first day and second day of my periods are less and second day night I have somewhat heavy period,, third day it is normal,, but I m getting pain in my lower right side of abdomen due to periods which I never got this type of pain before pregnancy,, my periods we're very smooth and pain less before pregnany, why is it paining now?? pls suggest