To wrap up NFP Awareness Week, I thought I'd take this opportunity to tell you where we were then, and where we are now.
Back then, I was content to begin married life on the Pill, and my husband and I were set on having two children, three at the most. Why? Well, because that's what society told us was acceptable. The thought of thinking for ourselves never crossed our minds. Having more than two or three kids? It just.wasn't.done.
After we quickly had our three children (so that we could be free to have fun and travel in our forties… ha ha ha!!!), we were ready for my dear husband to undergo the knife and destroy his reproductive capabilities. Because, again, that's just what responsible people do, right? We had no qualms.
However, something temporarily stopped us from going ahead with the vasectomy (that is a story in itself), and our subsequent reversion/conversion to Catholicism stopped us permanently, which means our fertility wasn't permanently stopped. Whew!
Long story short, we have welcomed five more children to our family since then (all boys!), and we can't imagine life without them. We also have one soul already with God.
If there is one message I want to send clearly to all, it's this: The fact that we have eight children is not an indication that NFP does not work. On the contrary, it has worked beautifully for us, and our children came when we expected them. No, the reason we have eight children is because understanding the truth and meaning of human sexuality changed our hearts. We went from being closed to the possibility of new life in our marriage, to opening those doors wide. It was a freedom in so many ways and on so many levels that turning back is unthinkable.
When you see NFP couples with a houseful of children, please don't make the mistake of thinking "NFP fails!" Like blogger Second Chances' husband says:
"The best part of NFP is that after you use it for a while, you realize you don't want to use it anymore :)"
"Instead of seeing pregnancies as precarious, once- or twice-in-a-lifetime events that require extensive planning and hand-wringing, they seemed to see pregnancy as a natural part of married life."
And as the wonderful Fr. Frank Pavone says:
"Love leads to life; it does not close it off. Love welcomes life; it is not afraid of it. Love and life go together because they are two aspects of the one God."
NFP may start as a dutiful obligation on the part of some newly convinced yet still-fearful couples, but when we put our trust in God's promises, it ends in a transformation of hearts, souls and marriages, for the glory of the One who is both Love and Life.
I can't believe I forgot to mention this in the Natural Family Planning post! There is one very common misunderstanding about NFP that comes in the form of a question like this:
"How is NFP different from contraception, since both of them are ways not to have a baby? I can't see a real difference, since the intention is the same: to prevent a pregnancy!"
The question assumes that avoiding pregnancy is inherently immoral according to the Catholic Church. But the Church does not teach this! In fact, it is not inherently immoral to avoid pregnancy.
The question is flawed because it forgets the distinction between the end (our intended goal) and the means (how we get to that goal).
For an act to be moral, both the end and the means must be moral.
The "end" in our particular question is "preventing pregnancy". That is the goal or intention, and it is not inherently evil. If serious reasons exist, a married couple is justified in postponing pregnancy, even indefinitely. So, in such a case, we've got a moral "end".
So far, so good!
But now what about the "means"?
Well, the means a couple uses to prevent pregnancy has to be moral, too. Like so many other things in life, we have a choice between moral and immoral ways to get to a good end. NFP is a moral means of preventing pregnancy, contraception is an immoral means of preventing pregnancy.
But why?
Well, because contraception fundamentally changesthe very natureof sex. In some cases, the spouses' bodies themselves are altered through chemical or surgical means, and in other cases there is a literal, physical barrier put between husband and wife at the moment they are called to be united as "one flesh". Contraception subverts the inherent, purposeful connection between love and life (i.e., sex and procreation), and when those two dimensions of sex are artificially separated, the marital act itself becomes disordered. To deliberately sterilize the marital act is to strip it of its transcendence and meaning. Sex leaves the sacred and becomes common.
With NFP, by contrast, the spouses and the marital act remain untouched and unaltered. Husband and wife unite in love as they are designed, and fertility works within the rhythms that God (and Natural Law) intends. The integrity of the martial act is completely intact.
But wait!you might say. You are still manipulating the process by not having sex during times you might get pregnant!
No, not manipulating. NFP users are working with the natural cycles of fertility and infertility that God Himself put in place. God could have chosen to make us fertile 100% of the time, but in fact He made us infertile the majority of the time. To prayerfully consider our situation and then avail ourselves of the naturally infertile times of a woman's cycle does not disrespect God's design or the Natural Law.
Remember, choosing to abstain from sex is not a sin. However, choosing to take the pleasure of sex while willfully disconnecting it from its full meaning is a sin.
This analogy may help:
Trixie and Pixie both want to lose weight. Losing weight is not inherently sinful, and can be a good goal.
Trixie's means to that end? She practices self-control and sacrifice by eating healthier meals and smaller portions, and even fasting for a time.
Pixie's means to that end? She eats all she wants, in any portion, heavy on the sweets and treats. Each time she is done indulging her palate, she retreats to the bathroom where she sticks her finger down her throat and vomits it all back up.
I hope we all can agree that Trixie's means of losing weight is moral and ordered, while Pixie's means of losing weight is immoral and disordered.
Bulimia contradicts the body's design by accepting the pleasure of eating, but willfully thwarting its life-giving purpose.
Contraception contradicts the body's design by accepting the pleasure of sex, but willfully thwarting its life-giving purpose.
Natural Family Planning is a good means to a good end, thus is ordered and moral.
I am so grateful to Alison at Matching Moonheads for agreeing to write a guest post about Natural Family Planning! She and her husband are certified NFP teachers for the Archdiocese of Galveston-Houston and have been teaching a sympto-thermal method for two years.
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I couldn’t be more excited to write this article about the scientific perspective of natural family planning (NFP). Understanding the science behind NFP and how exquisitely our bodies are designed has had a huge impact on my life. I am passionate about sharing this knowledge with others.
The Basics
All natural family planning (NFP) methods have the same aim: Identify the times when a couple is fertile or infertile in order to know when to achieve or avoid pregnancy. This does not make NFP a method of contraception, since nothing is being done to prevent conception. The sex act is left undisturbed, and the spouses’ bodies are unaltered. A couple decides when to have intercourse based on their desire to postpone or achieve pregnancy.
A male is always fertile, but without the right conditions in the female body, his sperm will die within 20 minutes after completion of intercourse. A woman, on the other hand, cycles between being infertile and fertile all within an approximately month-long period.
Overview of a woman's cycle
(Click image to enlarge)
From the Diocese of Harrisburg, Pennsylvania, Sympto-thermal Method, Dr. Roetzer.
Because males are always fertile and females are only cyclically fertile, NFP methods focus on understanding when a female’s body creates an environment hospitable to sperm, making conception possible. This is done by observing one or both of two measurable and quantifiable secondary characteristics of a woman’s body that occur as a result of the hormones that control her reproductive cycle: her basal body temperature and her cervical fluid discharges. In short:
An increase in cervical fluid indicates cycle onset of fertility.
A rise in basal body temperatures (which are correlated with a “drying up” of cervical mucus observations) signal a return to infertility after ovulation.
Using these two observations together, a complete picture of the fertile window leading up to ovulation and after ovulation can be made.
Each NFP method has the user identify her cycle peak day from her fluid observations, which is the last day that the most fertile fluid was observed. [Cervical fluid discharges closely resemble nasal mucus and come from similar crypts within the cervix. These fluids are commonly referred to as "cervical mucus," so I will use that term from here on out.] Peak day is the highest statistically likely day of ovulation. (Note that the only way to identify ovulation with 100% certainty is through ultrasound. However, since we are interested in days of fertility or the “fertile window”, not just ovulation, determining ovulation day with 100% certainty is not necessary to use NFP.)
Identifying the onset of changing fertile mucus and peak day are the cornerstones to almost all NFP methods.
A woman will ovulate during a 24-hour window of her cycle when follicle stimulating hormone (FSH – not shown on the chart) and luteinizing hormone (LH - green on the chart below) reach sufficient levels. A released egg has only 24 hours of viability; if it is not fertilized by a sperm during that time period, the egg will die and be absorbed back into the system.
However, the male’s sperm can live up to 5 days, depending on sufficient, good quality cervical mucus. Because of this, the days immediately preceding and the day following ovulation are potential days of fertility. Each NFP method has rules (based on significant research) that dictate how long after peak day abstinence is required for avoiding pregnancy.
Making Observations
All NFP methods require the woman to make routine observations about her body, in order to apply the rules to achieve or avoid pregnancy. The two main types of NFP are the mucus-only methods, which record mucus observations, and the sympto-thermal methods, which record both basal body temperature and mucus observations. While observing and charting is a highly individual task, it helps to follow standardized rules that ensure the best possible observations. Some NFP methods are more standardized than others, so it is best to pick a method that will suit your needs. Some things to remember when making your observations:
When using basal body temperature (BBT) readings, it is important to take your temperature at the same time in the morning before getting out of bed. BBT data is based on circadian rhythms that are affected by hormones that start flowing in your body before you get out of bed. Data is best compared at the same time every morning when your body is still as close to being asleep as possible, before it starts to “heat up.”
It is important to use a basal body thermometer to ensure accuracy, not just any thermometer. Additionally, most thermometers have a “memory recall” button that allows you to take your temperature without needing to write it down right away. This means you barely have to wake up to take your temperature and can easily go back to sleep.
Cervical mucus is to be observed every time you void (both before and after) and right before you go to bed. This is as simple as wiping from front to back using a flat sheet of folded toilet tissue and examining what you see. You will be looking for two things: sensation when wiping and characteristics of the mucus. Both are important. A mucus observation that includes any of the following would be considered the most fertile (for identifying peak day): a wet or lubricative feeling when wiping, mucus that is clear or stretchy (think: egg white). Other cloudy, tackier mucus (think: more like tooth paste or pudding) will be less fertile. You will record the most fertile reading of the day on your chart. The NFP method you have chosen will have different ways to classify this and different rules for how to proceed.
In the pre-peak phase of your cycle, it is necessary to get a good mucus reading throughout the day before you can conclude if a day is fertile or infertile. This means that for almost all NFP methods, intercourse in the morning during the pre-peak phase is not advised.
It is important to identify true menstruation, which only follows ovulation. Not all bleeding is menstruation, including bleeding while using the Pill. Mucus observations must be made on days of light bleeding. Couples that are going off of hormonal contraception are advised to practice abstinence during the pre-peak phase for the first few months, in order to properly practice mucus readings and identify peak day (fertile mucus will closely resemble seminal fluid). Often what women think is their period is not, because they have not been ovulating while on the Pill.
There are several other things to keep in mind when making observations, and what I’ve given here is by no means a complete description. It is absolutely necessary to consult an NFP teacher who will be able to explain the details of their method, and who will work with you one-on-one to help you understand your chart and any issues you might have.
Understanding the Hormones
In order to use NFP, it is not necessary to understand how the careful balance of hormones creates the woman’s reproductive cycle. However, it is interesting information, and it can help identify problems when a woman has irregular cycles and/or is not conceiving when desired. Understanding the balance of these hormones and seeking to correct any imbalance is the basis for NaProTechnology with Dr. Hilgers and the Pope Paul VI Institute, whose mission is the study of reproduction (and avoiding artificial reproductive techniques).
(Click chart to enlarge)
Note: This is an example cycle. Every woman's body will vary.
The hormones that dominate a woman’s cycle are estrogen (estradiol – blue on the chart) and progesterone (red on the chart). The pre-ovulation/pre-peak phase (also called the “follicular phase”, as this is when a follicle is developing to release an egg), is dominated by estrogen. After menstruation and in the beginning of the cycle, the pituitary gland in the brain will produce follicle stimulating hormone (FSH) that will do just that – stimulate the follicles on the ovaries to start getting ready to mature and release an egg. This developing follicle (shown in the graph) will begin to produce estrogen, which increases the uterine lining, opens the cervix to admit sperm, produces mucus that will aid in transmitting sperm, and depresses the basal body temperature.
High enough levels of estrogen emanating from the growing follicle on the ovary will eventually signal the pituitary gland to release luteinizing hormone (LH) to trigger ovulation. Incidentally, this is the hormone measured by the Clearblue® Easy Fertility Monitor and ovulation predictor kits.
In the post-peak phase or “luteal phase”, the burst follicle on the ovary (now called the corpus luteum or “yellow body”) will release progesterone that causes the body to get ready for pregnancy. It will signal the pituitary gland to stop producing FSH (which is why you won’t ovulate beyond a 24-hour window), the cervix will close, mucus will dry up, endometrial lining will increase in preparation for implantation, and basal body temperature will increase. However, after two weeks the corpus luteum will begin to dry up if it has not heard from a fertilized egg to keep producing progesterone. If the woman is not pregnant, progesterone levels will drop, the endometrial lining will slough off, the woman will get her period, and the cycle will start all over.
NFP Resources
This introductory article is by not meant to substitute for real, individual NFP instruction! It is offered only as a introductory resource for those inquiring into NFP. As mentioned, many doctors have been researching and working on natural family planning methods over the last several decades, so there are multiple NFP methods available. There is truly something for everyone in any circumstance. Because NFP requires users to make observations on their own bodies each month, it is a highly individualized method,unlike the rhythm method, which used rules based on the average woman’s cycle. Regular cycles are not a requirement to use NFP.
Marquette Method – Sympto-thermal method, includes Clearblue Easy monitor
CEIBA Study, study for couples wanting to learn Creighton
Additionally, CCL has a home study course available to self-teach, which may be a good resource for those couples looking to learn on their own, or who don’t live near a teacher.
A final note: NFP has benefits for everyone, not just Catholics. I was not Catholic when I first learned about NFP, but I had accepted that NFP was a powerful pathway to good health, to accepting my femininity, and to respecting my own body’s reproductive and life-giving potential. For me, learning the method led me to discover truths about my body that point to something higher -- namely, what true love and self-giving look like. From there, I was eventually able to understand other universal truths, which cleared up many misconceptions I had about Catholic teaching, and which eventually led to my conversion.
Thanks again to Alison for this excellent NFP primer! And for those of you interested in hearing from real-life NFP couples, please watch this sweet video made in my own diocese. I am blessed to know several of the couples (and the doctors) in the film. Don't miss the funny outtakes at the end!
