Several reasons: Periods can simply be delayed because of natural hormonal reasons. Other causes include medical conditions like thyroid, disease, stress, etc. This is just a short list of reasons that don't include pregnancy.
Answered 12/16/2014
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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