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Do you count the last or first day of your last period?
Any counting of days regarding menstruation or fertility is always from the first day of your period - LMP is the day you started your last period, fertility window is from LMP - to days 9 thru 16 - the average cycle is 28 to 34 days beginning with LMP.
How do you calculate menstral cycle?
Day 1 is the first day of bleeding. Last day is the day prior to the start of next period. Average cycle is 28 days with an average bleeding duration of 3-5 days.
How do you compute your menstrual cycle?
The first day of your current menstrual cycle (the first day you begin to bleed again) is also your last day of your previous cycle. The average length of the cycle is 28 days. The first day of your current menstrual cycle (the first day you begin to bleed again) is also your last day of your previous cycle. The average length of the cycle is 28 days.
How many days between the last day of your period and the first day of next cycle?
The first day of your period is day one, then the days after are day two, day three, etc. You will ovulate sometime around day 12-17. Your menstrual cycle will begin again around days24-36 and then as soon as it starts you are back to day one and the process starts over.
How long does a mentural cycle last?
It depends anywhere from 3-8 days.
