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What is a Fertility Awareness Method, and how do you start charting with FAMs?

posted on September 18, 2020 by Cassie Moriarty Cassie Moriarty

It’s a big enough step to decide to switch to a Fertility Awareness Method. The second biggest step is deciding on which method to use. A quick google search will send you in a tizzy and even though we have a handy quiz for just this issue, all the talk of charting and cervical mucus can still feel overwhelming. How do you decide which biomarkers will work best for you? And how come some women swear by one method and others prefer another?

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Breaking it down: What is a Fertility Awareness Method, anyway?

We first need to establish that there are two different topics—there are Fertility Awareness Methods (FAM), and then there are the biomarkers the methods utilize. 

Fertility Awareness Methods can help a woman understand her body’s menstrual cycle and hormone health and identify and treat reproductive disorders. They can also be used as methods of natural family planning (NFP) that equip a woman to know when she is fertile and when she isn’t, at natural times in her cycle. By avoiding intercourse during periods of her cycle when she is fertile, many women use FAM as a form of natural birth control, and at effectiveness rates that rival pharmaceutical birth control.

Modern FAMs or methods of NFP are observation-based (and not estimation-based like the antiquated rhythm method), and they use one or a combination of any of the following biomarkers: cervical fluid, basal body temperature, cervical position, and urine hormone measurements. 

Each method is a little bit different in their “feel” in charting—some utilize colors or stamps, some have apps, some can pair with high-tech devices, and others exclusively use paper charts. No matter how high- or low-tech the method, all modern FAMs hinge on finding ovulation and therefore, the fertile window (otherwise known as the period of time a couple could potentially get pregnant if they engage in intercourse). Along with differences in charting, each method will also calculate a woman’s fertile window in a slightly different way. 

Which Fertility Awareness Method is most effective?

For obvious reasons, women often want to use the “most effective method.” But what FAM efficacy often boils down to is the method that you will use best—and consistently. It is not one-size-fits-all. What’s great about FAMs is there are many different evidence-based options available for women to choose from. No matter the FAM or method of NFP you choose, teacher support, motivation to avoid pregnancy, and partner support are the top three drivers for effectiveness. So, once you have chosen a method, make sure that you get an instructor, that your partner is on board, and that you’ve discussed your fertility goals (whether that is to get pregnant, or not).  

In my work as a FAM educator, my three biggest goals for all of my clients are for them to feel confident with the following:

    1. Determining fertile and infertile days;
    2. That the steps involved in their charting routine are sustainable; and
    3. That their needs—whether health or family planning related—will be met.

Which Fertility Awareness Method should you choose?

The first and most important question is “What do you feel that you can commit to today?” I always emphasize that needs, hormones, and capacities shift over the years, so what works today might not work in a year—or in five years. It’s important to take into account variables like the cost of the method, accessibility to a certified FAM educator (although these days most of them teach online!), and fitting biomarker observations and charting into their schedule. 

Some women want as much objectivity as possible, so they lean toward more quantifiable biomarkers like temperature (e.g., Sympto-Thermal Method) and hormonal tests (e.g., FEMM or the Marquette Method). Other women can’t possibly commit to taking their temperature every morning, and prefer to simply track cervical mucus (e.g., the Creighton Method or Billings Method). Some women want a very basic method that requires minimum charting (such as methods that pair with devices like the Ava bracelet or Tempdrop thermometer). 

The good news is that there truly is an effective method (and combination of biomarkers) for each woman, and every goal or stage of fertility (from trying to avoid pregnancy or trying to conceive, to the transitional periods like postpartum or perimenopause). 

Even when your cycle isn’t “textbook,” fertility awareness can still work for you

It’s easy to take a FAM class and memorize what a chart should look like. But women often face a chasm—what they experience in their biomarkers doesn’t look like the textbook. When this happens with one of my new clients during her very first cycle of charting, I give it a wait-and-see approach. I usually urge charters to chart with the method for a full three cycles before jumping to conclusions like “this doesn’t work for me,” or “I’ll never figure it out.” 

In those three cycles, I hone in on cervical fluid observations (sometimes it’s simply a matter of understanding a descriptive word differently) and use a little trial and error on what feels sustainable to the charter. Sometimes in the learning phase, a woman may take on additional biomarkers that are temporary—meant to help them feel more confident. They may not want to commit to a urine hormonal test every month for the rest of the foreseeable future, but in the early stages of learning, it may give them a helpful cross-check to be sure that they are understanding other signs accurately. Usually after three cycles, most women feel confident and understand what they’re looking for, and they may be able to drop some of the additional biomarker observations they adopted as cross-checks while initially learning the method.

Troubleshooting your FAM and any issues with fertility 

After three months, some women may find that things still aren’t clear. In my experience as a FAM educator, I find this is not usually part of the learning curve, but rather an obstacle between the “text book” and “the charter.” Sort of like buying a car that won’t turn on—you keep reading the manual over and over and thinking “what am I doing wrong?” only to find that there is a crucial piece of the motor missing or defective. In these cases, it really isn’t a matter of “learning the right method,” but rather looking under the hood of the car. 

A common problem I encounter as a FAM instructor is hard-to-read cervical fluid. Cervical fluid is the most subjective of the biomarkers—but also arguably the most important one. After a charter has been watching diligently for three cycles and her cervical mucus sign still doesn’t seem to make sense, I turn toward the possibility of a communication error between the cervix and the ovaries. It isn’t all that common, but it does happen. 

It’s important to take into account a woman’s reproductive age, dietary practices, and any medications she may be on. Hard-to-read cervical fluid often presents itself in two ways—abundant cervical fluid that seems never-ending, or scant, minimal cervical fluid that never seems to progress to what we would describe as “highly estrogenic” cervical fluid. These present two very different hormonal narratives—both of which should be addressed, unless of course the woman is breastfeeding or postpartum, where you can expect some significant variations from the norm in terms of cervical mucus patterns. (Fertility after birth is its own conversation separate from this one! But we have addressed this issue many times before on Natural Womanhood, in resources that can be found here.)

The benefits of FAM for women’s health

This of course is one of the greatest advantages of using a Fertility Awareness Method or method of Natural Family Planning: you can “clue in” to things like hormonal imbalances, and learn more about your body than you ever could on hormonal contraception. And that’s why it is crucial to have Reproductive Endocrinologists, OBGYNs, and General Practitioners well versed in Fertility Awareness Methods. Women need a place to go when they realize something in the car is malfunctioning. There is great opportunity for collaboration among Fertility Awareness Educators and Medical Practitioners to further advance women’s health. Organizations like FACTS, FEMM, and Saint Paul VI Institute are doing just that. 

By working with a physician who is able to look under the hood (so to speak) of your fertility health, and diagnose and treat any hormonal disorders, we can clear up the biomarkers that are confusing. Then, in my relationship with the woman as a FAM instructor, I can get to go back to my job of helping women have confidence in identifying their fertile/infertile days, building a sustainable charting routine, and meeting their family planning and health goals. 

No matter where a woman is on her journey with Fertility Awareness Methods or method of Natural Family Planning, support is the most important piece of the puzzle in ensuring confidence and success with the method. Women and couples need support in learning FAMs and to find the right fit for what their specific needs are in that chapter of their lives. And women who are dealing with hormonal imbalances—which seem to be increasingly more common—need the medical support to diagnose and treat them. As a FAM instructor, I am humbled and grateful to be a support person for women on this journey. 

For more information on getting started charting your cycles with a Fertility Awareness Method or method of Natural Family Planning, check out the following resources:

Getting Started

Ready, set…learn a natural method!

5 Things I Wish I Knew Before I Started Charting My Cycle

How to Talk Confidently About Fertility Awareness Methods With A Doubtful OBGYN, Partner, or Literally Anyone

What It’s Like to Live Out NFP, Compared to What You Learn in the Textbook

Surviving the Charting Learning Curve—With Support

Posted by Cassie Moriarty Cassie Moriarty
Cassondra Moriarty is a fertility awareness educator, postpartum doula, and lactation mentor based in New York City, where she lives with her 2 year old daughter and husband. She manages a local wellness clinic that focuses on hormonal health, and she leads monthly La Leche League meetings to help nursing moms connect and get guidance on breastfeeding. After ditching hormonal birth control in 2012, she became an ardent fertility awareness enthusiast. Now, as a FEMM certified instructor, she teaches women and teens how to chart their cycles. When not running after her toddler, she enjoys attempting to make her thumb green and listening to live jazz music.