Menstrual And Pregnancy Calendar. From first day of your period to the first day of your next period. The calendar method helps you predict your fertile days by tracking the length of your menstrual cycles over several months.
First day of last menstrual period *. Predict when your next period will arrive.
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Your due date is calculated by adding 280 days (40 weeks) to the first day of your last menstrual period (assuming a 28 day cycle).
What Is An Ovulation Schedule?
Learn the science behind your cycle with health articles.
Your Menstrual Cycle Can Give You.
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Predict When Your Next Period Will Arrive.
Pregnancy normally lasts from 37 weeks to 42 weeks from the first day.
The Calendar Method Helps You Predict Your Fertile Days By Tracking The Length Of Your Menstrual Cycles Over Several Months.
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