How To Count Ovulation From Last Period

If your cycle is 28 days long your next period should start 28 days from.

How to count ovulation from last period. Ovulation can be calculated by starting with the first day of the last menstrual period lmp or by calculating 12 16 days from the next expected period. Start with the first day of one period and count right up to the day before the first day of your next period. If your average menstrual cycle is 28 days you ovulate around day 14 and your most fertile days are days 12 13 and 14. To calculate your ovulation by tracking your cervical mucus keep a calendar and track your period and the length of time between each period for 8 12 months.

Our ovulation calculator gives you the dates you re most likely to be fertile over the next several months. Assuming a luteal phase of 14 days your ovulation day will be 14 days before your next expected period. How we calculate your fertile days. The average cycle length is 28 days but can range anywhere from 20 to 45 days.

Most women ovulate anywhere between day 11 day 21 of their cycle counting from the first day of the lmp. Once you have at least 8 months charted subtract 18 from the number of days in your shortest period to get your first fertile day in each cycle. First we estimate when you ll ovulate by counting back 14 days from the day you expect your next period. Ovulation happens about 14 days before your period starts.

For a 28 day cycle your egg would be released on day 14.