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How NFP Works

“Each and every act must remain open to the transmission of new life.”

 

John Paul II

Familiaris Consortio

 

Basic Principles

NFP is based on the nature of human fertility.

§         Pregnancy is possible only for a brief time during the menstrual cycle.

§         NFP identifies the fertile days.

The basic concept of Natural Family Planning XE "Natural Family Planning"  is simple. It is based on the nature of human fertility.

§         A man is always fertile.

§         A woman is only fertile during the ovulation phase of her menstrual cycle.

§         Pregnancy is possible only during this brief time of fertility.

§         During the other phases, it is not.

§         Thus, there are only certain days when a woman can get pregnant.

NFP methods simply identify the fertile days.

§         Married couples who, for serious reasons, decide to delay childbirth, choose to abstain from sexual relations during the days of the wife’s fertile period.

§         Couples trying to conceive will time sexual intercourse to coincide with the wife’s fertile time.

NFP Chart

 

 

 

 

 

 

 

The fertility cycle includes the three-to-seven-day range of a woman’s menstrual period (conception not possible).

§         a woman’s fertile period (conception possible).

§         a woman’s dry period (conception not possible).

Determining the fertile time

Some parts of the monthly cycle are the same for all women, some are different.

Majority of woman have a 28-day cycle.

NFP methods enable a couple to identify the woman’s time of fertility in her own cycle.

There are two primary symptoms that indicate fertility/ovulation

§         Mucus

§         Temperature

Mucus

The changing quality of vaginal mucus tells a woman about her fertility.

Ovulation takes place during the most liquid phase.

Temperature

A shift in body temperature also tells a woman about her fertility.

Ovulation takes place the third day after the temperature shift.

 

 


 

 


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