If you are taking your pills correctly & consistently, then spotting/ break thru bleeding does not mean they are less effective at preventing pregnancy. It does, however, mean that they are not regulating your cycle as they should be. If this is a persistent problem, meaning you are having break thru bleeding during your hormone pills for more than 3 months in a row, call you healthcare provider. You may need a change in pills to achieve good cycle control and eliminate that irregular bleeding.
20. January 2012
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