Following methods will help you find out your most fertile days, which include:
- Calendar Method: The calendar
method involves recording the length of each menstrual cycle on
a calendar for a period of about 8–12 months. Circle
the first day of your period on a calendar,
which is day 1. Note down the total number of days your periods last every month.
- Find Out Your First Fertile Day: Subtract 18 from the total number of days in your shortest monthly cycle. For example, if your shortest cycle is 25 days long,
subtract 18 from 25, which leave 7. In your current cycle, if your first day of period was on sixth of the month, take that day to be day 1. Count the number of
days from day 1 of your current monthly cycle, and mark the 7th day with an X. In this case, 12 will be the 7th day, which is your first fertile day.
- Find Out your Last Fertile Day: Subtract 11 from the total number of days in your longest monthly cycle to find out the last day when you are most fertile. For
example, if your longest cycle is 30, subtract 11 from 30, which leave 19. Now, count the number of days from day 1 of your current monthly cycle, and mark that
19th day with an X. Include day 1 when you count. In this case, the day you will mark X will be the 24th.
Based on these calculations, you are most fertile from 11th to 24th of every month. Please note 18th and 11th are constant numbers and you need to use these to get accurate calculations while using calendar method.
However, for the best results, use this method along with other fertility awareness methods, such as ovulation method or basal body temperature method.
Ovulation Method: Ovulation method is also known as the cervical mucus method. This method involves watching, feeling and recording the amount, texture and appearance of mucus throughout the month.
- Right after your period, you will not have much mucous present or its dry.
- As the egg starts to mature, mucus increases in the vagina and is white or yellow and cloudy and sticky in appearance.
- Just before ovulation, you will have the greatest amount of mucus and it is clear and slippery like raw egg white. It can be sometimes stretched apart. This is when you are most fertile and is known as wet days.
- Four days after the wet days, the mucus becomes less and becomes sticky and cloudy again. These are the dry days.
Note these changes in your mucus on a calendar and label the days as ‘sticky,’ ‘dry,’ or ‘wet’. You are most fertile at the:
- first sign of wetness after your period
- day or two before wetness begins
Basal Body Temperature Method: Your body temperature at rest when you awake in the morning is known as basal body temperature. With ovulation, your basal body temperature rises slightly. Recording this temperature daily for several months will help you to predict your most fertile days.
Use all the three methods together to track your fertility most accurately.