Periods usually: don't consistently come on the same day of the month. The reason is that months can have different lengths - some are 28 days up to 31 days long. Regarding missed period - some irregularity can occur.
Answered 11/18/2014
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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
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