I had my periods 12-13 days late this time. Once it started first 3-4 days were extreme light only spotting. But then there was normal flow. But now it's been 20 days now and it has not stopped. I had a thyroid/hormone blood test and reports were normal .also had ultrasound and a left ovarian simple cyst of 3 cm was detected. Now am taking 2 tablets of pause 500 daily from last 2 days (had 5 tablets in total. But bleeding is not stopping though it has become somewhat lighter. Please advice.