"i have been on this pill for almost a year now. i take it continuously as to not have periods due to my endometriosis. it was a wonderful pill with virtually no side effects until four months ago. i have breakthrough bleeding that lasted for 5 days. the next month i had breakthrough bleeding that lasted 4 days. the next month i had horrible pain but no bleeding. and finally this month (month 4) i have had excruciating pain and have been bleeding for 2 days so far. the pain is terrible and almost as bad as when i&#039;m not on birth control. i&#039;m going to my doctor to get switched. i would recommend this to anyone who was going on birth control for a short time but not any longer than 6 months."