I was feeling frequent urination and my periods lasted for 3 days this time that too in the morning time only. I have irregular periods.i feel swelling on my upper part of stomach at both sides.i have taken 2 times pragnancy test as well both were negative one before the periods and second after it but that was not a issue. I am exercise from 15 days and after consulting you came to know it was normal swelling because of exercise and which is normal.