Natural Family Planning
The idea behind natural family planning is very simple. A woman
is fertile for only about 100 to 120 hours during a month. Let's call
this time period the "window of fertility." By avoiding sexual
intimacy during the window of fertility, pregnancy can be avoided. This method can
also help achieve pregnancy by understanding the fertility cycle better
and learning when the probability of concieving is highest. The question
that various natural family planning methods are trying to answer is
"How do I determine exactly when the window of fertility starts and ends?" If
the window could be determined with 100% accuracy, then
natural family planning would be a nearly perfect birth control method. However, the window can only be
estimated (estimated though with high probability). To determine the window of fertility, these
methods use such things as temperature, mucus, and cervical changes.
The following links take you to pages that offer you several different
approaches to natural family planning. Also be sure to check the
books page for good books on the subject.
The Couple To Couple League
On this home page you will find information on the Sympto-Thermal Method of
natural family planning. They also have a bi-monthly publication you can subscribe to called Family Foundations which
discusses the Sympto-Thermal method as well as other issues such as ecological breastfeeding.
Billings Ovulation Method
of Natural Family Planning
Are you planning to achieve
or avoid/postpone pregnancy?
Either way the Billings Method, developed by Drs. John and Evelyn Billings of
Australia, will help you during all the stages of your reproductive life.
Family of the Americas
This website offers an overview of the Ovulation method (as they call it). It also has pages on achieving pregnancy,
avoiding pregnancy, and on the anatomy and physiology of the reproduction system. They also have
a great page (click here) on all the studies done on the method and how successful it was at preventing pregnancy.
Primer on Natural Family Planning
This primer is an introduction, compares NFP to artificial
methods, and lists resources for further information.
Natural Family Planning
The pages linked to this index introduce the important biological and
physiological processes underlying natural family planning as exemplified
by the Billings Ovulation Method.
Examples of Misconceptions: Periodic Abstinence
This page discusses the problems with the Rhythm Method, an early form of abstinence-based
birth control not to be confused with Natural Family Planning.
Ovu-Tec Fertility Detector
This web site offers information that is never mentioned in NFP classes or books. A crystallization-fertility link was made by researchers over 40 years ago.
This company sells a small microscope which you can view your saliva (Yes, I know it does sound weird...) and from the pattern determine
if you are fertile or not. This works because the varying levels of estrogen in your saliva will cause certain patterns.
I don't know anyone who has done this or if it works so if you have, please let me know!
The Art of Natural Family Planning by John F. Kippley, Sheila K. Kippley
This is a great book if you want to learn about the sympto-thermal method of natural family planning.
It goes into a lot of detail and was the only book I needed to learn about the method. This book also
has a chapter discussing the religous/moral aspects of natural family planning as well as one on ecological
Fertility Cycles and Nutrition by Marilyn Shannon
How nutrition can affect your fertility. By eating or avoiding certain foods, some fertility problems can
be corrected. Also if you are practicing natural family planning, this will help regulate your cycle so the method is
more effective. If you are having any fertility problems you should read this book because the simple self-help
could really help and may let you forgo expensive medical treatment. The author cites many examples of reproductive problems that
were cured simply with nutrition.
Taking Charge of Your Fertility : The Definitive Guide to Natural Birth Control and Pregnancy Achievement by Toni Weschler
Huge book. Goes into detail on the chemistry of your body which can help you achieve or avoid pregnancy. Good book and
also good to keep around as a future reference.
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