Why would you have heavy painful periods every 15 days?

Answer 1

There are many reasons that could happen. You should see a doctor. You may be put on a Birth Control pill to help regulate your periods. That is fairly common.

AnswerA year of heavy bleeding every two weeks and painful intercourse grew worse until a gyno. discovered a huge pollup in my uterine linig that none of the general md.s found.

Answer

I had a 14 day cycle that got worse when my doctor tried to put me on the pill to regulate my periods. I later found out i had a prolactinoma. What other symptoms do you have?

could be endometriosis