Make Our Dictionary Yours
Sign up for our weekly newsletters and get:
By signing in, you agree to our Terms and Conditions
We'll see you in your inbox soon.
Of 100 women who use the calendar method as birth control for one year-without a single mistake-nine will become pregnant.
Women with very irregular periods also have irregular ovulation times, which makes the calendar method unreliable.
You're also using fertility awareness methods such as the standard days method or the calendar method.
Find similar words to calendar-method using the buttons