I have had an irregular period since I first started having them at the age of 13 (I will be turning 20 next month). They tend to be very heavy and last for long periods of time (at one point it lasted a whole month).I was diagnosed with Polycystic Ovarian Syndrome at the age of 15 and took the contraceptive pill to regulate the excruciating pain and heavy bleeds, but it had no effect (I tried three different types), and they lead to weight gain so I stopped taking them. I recently had a period for three weeks, had a two week break (in which I had sex with a condom which did not break), had my period two weeks later for a week, had a one week gap and a one day bleed. Since then, I have been suffering from uteral pains, which I feel in my cervix as well. I am unsure whether it is my right ovary that also hurts, or whether it is the right side of my uterus. The pain causes a lot of discomfort, and I have just been prescribed the painkilling drug 'naproxen'. I am yet to take these, but I remembered that when I was in school four years ago we were offered the cervical cancer jabs, which is a three vaccination course. Of these three I only had two, and forgot to have the third done. Can anyone help with what they think may be causing the discomfort and pain?