What would the cause of spotting be while on birth control? i have been on a three month birth control cycle for 4 years and never experienced spotting, now i have been spotting for ten days with my period not due for two weeks. what would possible causes

Spotting : Spotting can be normal at any point while on birth control pills. It is usually due to an imbalance in hormones or missed pills or a change in time that the pill is taken. If the spotting persists you should be evaluated by your doctor to rule out a pregnancy and to consider a change in pills with a different hormonal make up. Take care.