Changes in Cervical Mucus
Predicting Ovulation >> Changes in Cervical Mucus
Look & Feel of Fertile Cervical Mucus
Changes in Cervical Fluids: What Happens
As the customer service
representative at Early Pregnancy Tests, I sometimes receive email inquiries
about fertility charting, using a basal thermometer, and monitoring natural
fertility signs to predict ovulation. And while bbt charting will be the cornerstone
of your fertility chart, monitoring changes in cervical mucus (cervical fluids,
CM) is very important - particularly because method of charting allows you to
anticipate when you will ovulate each month. This week, I received an email
inquiry about the difference in appearance and texture between fertile and non-fertile
cervical fluids - a great opportunity to clarify how cervical mucus can be used
to determine when you are most fertile each month.
As a brief review, changes
in cervical mucus (CM) are not only a key signal of fertility, but are also
a big part of successfully achieving pregnancy. Cervical mucus is produced by
glands within the cervix, and specifically within your cervical canal. During
your menstrual cycle, both the quantity and the quality (texture, appearance)
of cervical fluids undergo a number of changes. In human reproduction, fertile-quality
cervical mucus supports conception by providing a fluid, healthy medium in which
sperm can survive and propel themselves. CM protects sperm from the naturally-acidic
environment of the vagina and helps sperm to move through the cervix into the
uterus. And because cervical fluids insulate and nourish sperm, the presence
of fertile cervical mucus can also extend the life-span of sperm, in turn increasing
the odds of conceiving by helping sperm "hang out" and wait for the
egg to appear following ovulation. (FertileCM is a natural product that can be used to increase the quality and quantity of cervical mucus you produce.)
So, that's the mechanics
of cervical mucus - but how can I use this information as part of my fertility
charting? As one customer recently asks...
"Dear Pat, I have been using your basal thermometer now for an entire cycle
now and I was able to draw a coverline this month! While on the topic of bbt
charting, do you have a picture of fertile cervical mucus and can you describe
for me the differences between non-fertile and fertile cervical mucus? Also,
when can I expect to see changes in cervical mucus during my cycle - e.g., on
which cycle days will the cervical mucus become fertile?"
course, variations in individual mucus patterns will differ among women due
to unique variables like cycle length, age, hormonal balance, use of fertility
drugs, etc. However, the appearance of "fertile quality" cervical
fluids typically arrives directly prior to ovulation, meaning that women can
use CM as a very reliable means of ovulation prediction. Let's take a look at
the changes in look and feel of CM as you move through your menstrual cycle...
and texture of cervical fluids will change as you move through your menstrual
cycle. Also, the quantity of cervical mucus present is also a key sign: When
you are most fertile, CM should be quite abundant. Texture:
During your cycle, cervical mucus may be absent or profuse, dryish or wet, thick
or thin, sticky or slippery. It may "hold its shape" or it may stretch
between your fingers like raw egg-white. Appearance: The look
of cervical fluids will also change during your cycle and CM may be white, creamy,
yellowish, translucent, or transparent.
When It Happens: During the first part of your menstrual cycle, CM may not be present or it will
be dry and thickish. The color may appear white. As you enter the follicular
(pre-ovulatory) phase of your cycle, estrogen increases and you may experience
"transitional" cervical mucus, marked by increased moisture, increased
volume, a more stretchy texture, and a thinner feel. Transitional mucus will
still be a bit tacky and hold its form to some degree. The color of transitional
cervical mucus may be white, creamy, or yellowish, though it will still be mostly
Directly prior to ovulation,
cervical mucus should be abundant. Fertile cervical mucus is
characterized by a transparent appearance - and it may look and feel like raw
egg white and stretch between your fingers without breaking (see fig 1). This
stretchiness is called Spinnbarkeit and indicates that ovulation is likely imminent.
Fertile CM will be thin, slippery (like lubricant), stretchy and translucent.
Typically, fertile-quality cervical fluids will appear a few days prior to and
during ovulation. Following ovulation, the quality of CM will change again due
to sudden decrease in estrogen and increase of progesterone. You may experience
transitional mucus, followed abruptly by an increasing dryness (non-fertile
CM) through the rest of your luteal phase. Below is a table that provides an
overview describing CM changes, what the changes mean, and when they occur.
& Appearance of CM
Sticky, Scant, Thick, White, Holds Shape
following AF, Most of luteal phase.
Moist, Neither thick nor thin, Cloudy, Opaque, Yellow, Slightly Stretchy
(increasing estrogen), Post-Ovulatory (increasing progesterone).
Slippery, Abundant, Thin, Transparent, Stretchy (egg-white CM)
Prior to & During Ovulation
As noted above,
there are many variables that can affect how cervical mucus is produced - and
women may have different experiences charting changes in CM. Notably, popular
fertility drugs like clomid can cause dryness or a decrease in CM. In addressing
the problem of dryness, Pre-Seed is a great product - the only intimate moisturizer
of its kind to not act as a barrier to sperm. Pre-Seed
was formulated to provide a fertility-friendly medium for sperm and Pre-Seed
may actually increase the odds of conceiving for many women.
A new dietary
supplement called, appropriately enough, FertileCM
is designed to actually help women produce cervical fluids during the ovulatory
phase of their cycle. FertileCM works by facilitating blood flow and circulation
to the reproductive organs, and research studies indicate that key ingredients
in FertileCM support the production of endocervical secretions during the time
a woman is most fertile.
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> See Also: Cervical
Mucus and Fertility