Natural family planning

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Natural family planning
Background
B.C. type	natural birth control
First use	1950s (mucus) mid-1930s (BBT) 1930 (Rhythm) Ancient (LAM)
Failure rates (per year)
Perfect use	1-9%
Typical use	3-25%
Usage
Reversibility	Yes
User reminders	Dependent upon strict user adherence to methodology
Clinic review	None
Advantages
Periods	Prediction
Benefits	In accord with Catholic teachings, no drug effects, can aid pregnancy achievement
Disadvantages
STD protection	No

Natural family planning (NFP) is a term referring to the family planning methods approved by the Roman Catholic Church. In accordance with the requirements for sexual behavior maintained by this church, NFP excludes the use of birth control, as well as all orgasmic acts outside of those achieved through unprotected vaginal intercourse with the user's spouse.

Periodic abstinence and the natural infertility caused by breastfeeding are the only methods permitted for avoiding pregnancy. Sex during infertile periods is permitted, whether during infertile periods of the menstrual cycle, during pregnancy, or post-menopause. Several methods may be used to identify whether a woman is likely to be fertile, which allows the NFP user and her husband to either try to avoid or to achieve pregnancy.

Contents 1 Prevalence 2 Methods 2.1 Observational 2.2 Statistical 2.3 Lactational amenorrhea 2.4 Effectiveness 3 Theology 3.1 Official Catholic 3.2 Dissident and other opposing 4 Potential advantages 4.1 Divorce rate 4.2 Claims regarding communication 5 Potential disadvantages 5.1 Abstinence requirement 5.2 Method limitations 5.3 Implantation failure and miscarriage 6 See also 7 External links 7.1 NFP information 7.2 Critical perspectives 8 Footnotes

[edit] Prevalence

It is estimated that 2-3% of the world's reproductive age population relies on periodic abstinence to avoid pregnancy.^[1] Breastfeeding is believed to reduce the world's fertility rate by 30-45%.^[2] However, what portion of this population should be considered NFP users is unclear. Some Catholic sources consider couples that violate the religious restrictions associated with natural family planning to not be NFP users.^[3]

Use of natural family planning may be high in Catholic countries: in Brazil, NFP is the third most popular family planning method.^[4] Identification of fertile days to avoid pregnancy may be common in developing countries in general - the "safe period" is the most common family planning method in India.^[5] However, use of NFP in developed countries is rather low. While Catholics made up 24% of the U.S. population in 2002,^[6] only 1.5% of sexually active Americans avoiding pregnancy were using periodic abstinence.^[7]

Use of NFP may not be restricted to Catholic couples. In 2002 Sam and Bethany Torode, a then-Protestant Christian couple, published a book advocating NFP use.^[8] (The Torodes have now reversed their NFP-only theological position, and converted to Orthodox Christianity.)^[9]

[edit] Methods

There are three main types of NFP. These are the observational methods, the statistical or "calendar" methods, and the Lactational Amenorrhea Method. Observational methods rely on biological signs of fertility, while statistical methods approximate the likelihood of fertility, based on the length of past menstrual cycles.

[edit] Observational

Some methods of NFP track biological signs of fertility. When used outside of the Catholic concept of NFP, these methods are often referred to simply as fertility awareness methods rather than NFP. The three primary signs of a woman's fertility are her basal body temperature, her cervical mucus, and her cervical position. Two well-known methods of NFP are the Billings ovulation method and the Creighton Model, which use cervical mucus as the primary indicator. If two or more signs are tracked, the method is referred to as the symptothermal method.

[edit] Statistical

These methods make statistical estimates as to when a woman is fertile. They include the Rhythm Method and the Standard Days Method.

[edit] Lactational amenorrhea

The Lactational Amenorrhea Method (LAM) is a method of avoiding pregnancies which is based on the natural postpartum infertility that occurs when a woman is amenorrheic and fully breastfeeding. The rules of the method help a women identify and possibly length her infertile period. A strict version of LAM is known as ecological breastfeeding.

[edit] Effectiveness

The Rhythm Method, the most well known method of NFP, has a perfect-use failure rate of 9% per year, while observational and lactational methods of NFP have lower perfect-use failure rates — between 1%-3% per year. The common usage failure rate is up to 25% per year.^[10][11]

[edit] Theology

Main article: Christian views on contraception#Roman Catholic Church

[edit] Official Catholic

Catholic doctrine holds that God created sexual intercourse to be both unitive and procreative.^[12] This church considers deliberately altering fertility or the marital act with the intention of preventing procreation to be sinful. Thus, artificial birth control methods and orgasmic acts outside of full marital intercourse are forbidden, while not having sex at all (abstinence) is considered morally acceptable. ^[13] While deliberate orgasmic acts outside of full marital intercourse are forbidden, the Church does not condemn foreplay in the context of sexual relations within marriage. Foreplay is permitted as long as the act culminates with the husband penetrating his wife's vagina with his penis and ejaculating while penetrating. ^[14] However, the Catholic Church does not condemn accidental premature ejaculation.

However, having sex at an infertile time in a woman's life (such as pregnancy or post-menopause) is also considered acceptable, since the infertile condition is considered to be created by God, rather than as an act by the couple.^[15]

This church considers it morally acceptable to abstain during the fertile part of the woman's menstrual cycle.^[16] Increasing the postpartum infertile period through particular breastfeeding practices — the Lactational Amenorrhea Method — is also considered a moral way to space a family's children.^[17]

The Catholic Church acknowledges a potential benefit of spacing children^[18] and use of NFP for this reason is encouraged. Humanae Vitae cites "physical, economic, psychological and social conditions" as possibly compelling reasons to avoid pregnancy.^[19] Couples are warned, however, against using NFP for selfish, immoral, or insincere reasons.^[18] Many Catholic sources extol the benefits children bring to their parents, their siblings, and society in general, and couples are encouraged to have as many children as their circumstances make practical.^[20]

[edit] Dissident and other opposing

See also: Christian views on contraception#Natural Family Planning only or "artificial" methods too?

Many Catholics have voiced significant disagreement with the Church's stance on contraception.^[21] The Canadian Conference of Catholic Bishops issued probably the most heavily dissenting document, the Winnipeg Statement. In it, the bishops argued that many Catholics found it very difficult, if not sometimes impossible, to obey Humanae Vitae. Additionally, they reasserted the Catholic principle of primacy of conscience.^[22] Catholics such as Fr. Charles Curran have also criticized the stance of Vitae on artificial birth control.^[23]

Theological opposition has additionally come from Protestant Christianity. John Piper's Desiring God ministry states of NFP, "There is no reason to conclude that natural family planning is appropriate but that "artificial" means are not."^[24] Sam and Bethany Torode, former advocates of NFP-only, have redacted their position to include barrier methods and explain their current theology this way:

We also see honest congruity with the language of the body by saying "no" to conception with our bodies (via barrier methods or sensual massage) when our minds and hearts are also saying "no" to conception. We don’t believe this angers God, nor that it leads to the slippery slope of relativism or divorce. We strongly disagree with the idea that this is a mortal sin.... it’s a theological attack on women to always require that abstinence during the time of the wife’s peak sexual desire (ovulation) for the entire duration of her fertile life, except for the handful of times when she conceives.^[9]

[edit] Potential advantages

Fertility awareness methods of NFP can be used to track reproductive health in general, and aid in the diagnosis of gynecological health and/or fertility problems. Particularly with the Sympto-Thermal Method, which is based on a scientific method of self-observation, temperature, external and internal mucus, and cervical observations are all recorded daily on a calendar. Any observation of irregularities may prove helpful, providing a doctor or gynecolotist with important diagnostic information with dates and a personal history of any abnormalities.^[25] The fertility knowledge gained from NFP methods may also be used to help achieve pregnancy.^[26]

Since NFP methods do not interfere with natural female hormone cycles, NFP is not proven to have any physical side effects. Relatedly, intercourse may be spontaneous, as compared to the use of condoms.^[27] However, intercourse is not spontaneous during the days where sex is forbidden.

NFP can be free or very low-cost.^[26] Some methods encourage the use of a thermometer and/or photocopied charts, which can be obtained relatively inexpensively. Some couples choose to use software or to use other devices such as a string of beads for counting the days.

[edit] Divorce rate

NFP increases marital satisfaction and helps lower divorce rates. One study involving 505 women using NFP found a correlation between lower divorce rates and the use of NFP. ^[28]

[edit] Claims regarding communication

Fertility awareness forms of NFP (which require daily charting of fertility signs) can result in couples communicating more about their bodies and sexuality; this is said to improve communication skills throughout the entire marriage. One idea, called a "courtship and honeymoon effect",^[29] is that the scheduled abstinence encourages couples to express love in non-genital ways, and to have a greater appreciation for intercourse when it does happen.^[30] To date there has been no study exploring this idea.

[edit] Potential disadvantages

[edit] Abstinence requirement

Users may find that the abstinence required by the Catholic Church is beyond their capabilities or wishes. The fertility awareness and statistical forms of NFP require periodic abstinence, known as continence, most commonly 8-10 days of each menstrual cycle. It is common for the woman's sexual desire to be highest on those fertile days, and lower in other parts of the cycle.^[31] That the couple must abstain from sex during the woman's periods of peak sexual desire may be deeply frustrating for both partners, and lead to feelings of isolation.^[32]

A prominent example of a person who holds this view is Bethany Torode. She and her husband co-authored a book titled Open Embrace, which promoted exclusive use of abstinence-based NFP in the context of their Christian faith. Five years later, Torode described significant drawbacks associated with the abstinence requirement of NFP:

"Our personal experience in the past five years has shown that we had a lot to learn about NFP, and that there is a dark side we weren’t aware of. Though Open Embrace said that it only involves a short period of abstinence, we didn’t know that during breastfeeding cycles it often involves month-long periods of abstinence and dehabilitating stress. During such times (as well as during menopause and stressful life seasons), strict NFP reaches a point where it is more harmful for a marriage than good."^[9]

"We also see honest congruity with the language of the body by saying "no" to conception with our bodies (via barrier methods or sensual massage) when our minds and hearts are also saying "no" to conception. We don’t believe this angers God, nor that it leads to the slippery slope of relativism or divorce. We strongly disagree with the idea that this is a mortal sin." ^[9]

"... it’s a theological attack on women to always require that abstinence during the time of the wife’s peak sexual desire (ovulation) for the entire duration of her fertile life, except for the handful of times when she conceives." ^[9]

Few Catholics in the United States use periodic abstinence as birth control. While Catholics made up 24% of the U.S. population in 2002,^[6] only 1.5% of sexually active Americans avoiding pregnancy were using periodic abstinence/NFP.^[7]

Other reported disadvantages of the abstinence requirement are:

• Some methods of NFP require up to six months of research and observation (and abstinence) in order to collect baseline data, so these methods cannot be immediately implemented by a new user. ^[33]

• Couples seeking the lowest risk of pregnancy (less than 1% per year) may be required to abstain for more than half of each menstrual cycle.

• For women in certain situations - breastfeeding, perimenopause, or with hormonal diseases such as PCOS - abstinence may be required for months at a time.^[9]

• When taught in the context of Catholicism, NFP teaches that orgasmic acts outside of intercourse, such as oral sex and masturbation, are incompatible with the correct practice of NFP. Some couples are not comfortable with this restriction. Periodic abstinence also limits spontaneous sex.^[34]

[edit] Method limitations

• Some fertility awareness forms of NFP require observation or touching of cervical mucus, an activity with which some women are not comfortable. Some practitioners prefer to use the term "cervical fluid" to refer to cervical mucus, in an attempt to make the subject more palatable to these women. Some drugs, such as decongestants, can change cervical mucus. Women may not be able to rely on these forms of NFP while taking these drugs.^[35]

• Some fertility awareness forms require tracking of basal body temperatures. Because irregular sleep can interfere with the accuracy of basal body temperatures, shift workers and those with very young children, for example, might not be able to rely on those methods.^[35]

• The NFP methods that encourage breastfeeding infertility can only be used until the woman's first post-partum menstruation. Even the most strict form results in average return of menses at 14 months post-partum,^[36][37] and menstruation can return as early as 6 weeks post-partum.^[38]

• NFP does not protect against sexually transmitted disease.^[34]

[edit] Implantation failure and miscarriage

• It has been suggested that unprotected intercourse in the infertile periods of the menstrual cycle may still result in conceptions, but create embryos incapable of implanting.^[39]

It has also been suggested that pregnancies resulting from method failures of NFP are at increased risk of miscarriage and birth defects due to aged gametes at the time of conception.^[40] The most recent research, however, suggests timing of conception has no effect on miscarriage rates,^[41] low birth weight, or preterm delivery.^[42]

[edit] See also

• Theology of the Body

[edit] External links

• New Life for Family Planning, Michael P. Harris, Time, September 19, 1988

[edit] NFP information

• Serena Canada
• The Couple to Couple League
• Billings Ovulation Method
• Natural Family Planning Center
• Creighton Model System
• Family of The Americas
• One More Soul
• The NFP Files
• The GIFT Foundation
• Cardinal Varkey's Letter on Family Planning Trends Among Catholics: Varkey Cardinal Vithayathil, Kerala, India

[edit] Critical perspectives

• openembrace.com - An update from Sam & Bethany Torode, authors of Open Embrace, which details how they have changed many of their views since authoring their book.

[edit] Footnotes

Birth control edit
Sterilization:	Tubal ligation, Vasectomy, Essure
Post-intercourse:	Abortion: Surgical, Medical Emergency contraception
Intra-uterine:	IUD, IUS (progestogen)
Anti-estrogen:	Ormeloxifene (a.k.a. Centchroman)
Hormonal:	Combined: COCP ('the Pill'), Patch, Nuvaring Progestogen only: POP mini-pill, Depo Provera, Norplant, Implanon
Barrier:	Male condom,Female condom, Diaphragm, Shield, Cap, Sponge, Spermicide
Behavioral:	Coitus interruptus, Rhythm Method, Lactational, Fertility awareness Avoiding vaginal intercourse: Anal sex, Oral sex, Outercourse, Masturbation, Abstinence