My daughter is 15 and has been taking the pill for almost year. She was advised to go on the pill as her periods were very heavy, painful, and unpredictable. Her cycle when from every 28 days 5 days bleed to an 10 day cycle, a couple of days break then another long period.

She has been taken the pill for almost year but is already on her third pill. At the beginning of a new pill she would be fine, no bleed but after around two months her periods returned to the same patterns like before. She has been taken Yasmin since June and the same predictable pattern has occurred. She saw a nurse who did the normal physical checks and said all was fine however, she is now bleeding daily with no break. She has lower back and pelvis pain and is constipated and already missed her first two weeks return to school.

I am really concerned, any advice would be greatly appreciated.