A member asked:

I had my period in august 10-18. do i count my next one from the 10th or the 18th ?

A doctor has provided 1 answer
Dr. Cynthia Archer answered

Specializes in Internal Medicine

Your LMP: Is measured starting on the first day of your last menstrual period. So your LMP would be August 10th. Always the designation should be which ever day was the First day you had your decidual bleed (menstrual bleeding). Check out the graphic, It explains the cycle in detail...

Answered 9/10/2014

3.7k views

Thank

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