How Does The Calendar Rhythm Method Work

Mark the first day of your period this is day 1.

How does the calendar rhythm method work. To use the rhythm method you track your menstrual history to predict when you ll ovulate. Estimate the fertile time. To do this effectively women should.

Determine the length of your shortest menstrual cycle. How do i use the calendar method. The first day of monthly bleeding is always counted as day 1.

They can then either choose to not have sex during those days or can use a barrier form of birth control such as condoms or spermicide. The rhythm calendar method calculates ovulation using the length of previous cycles. There are several ways by which women can monitor their fertility.

Before relying on this method a woman records the number of days in each menstrual cycle for at least 6 months. You can do this with a regular calendar or our period tracking app. Women using the rhythm method monitor their body and analyze their past menstrual cycles to try to determine when their fertile days are.

It can be accurate however for women who do not have exactly regular menstrual cycles predictions can be inaccurate. Even women with regular cycles experience irregular cycles from time to time. The woman must calculate her fertile and infertile periods based on her own menstrual cycle length.

Before you can use the calendar method as birth control you need to keep track of the length of your menstrual cycles for at least 6 periods. If that s not you this isn t going to be the best approach to birth control. The rhythm method also called the calendar method or the calendar rhythm method is a form of natural family planning.