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What is The CREIGHTON MODEL FertilityCare™ System (CrMS)?

Most women still do not know about the workings of their cycles of fertility and infertility. Every woman has the right to know how her cycles function in order to understand the way her body works.

The CrMS is based upon a couple’s knowledge and understanding of their naturally-occurring phases of fertility and infertility.

Through this understanding, the couple is able to make decisions (choices) regarding the achievement or avoidance of pregnancy.

The CrMS relies upon the standardized observation and charting of biological markers that are essential to a woman’s health and fertility. These ‘biomarkers” tell the couple when they are naturally fertile and infertile, allowing the couple to use the system either to achieve or to avoid pregnancy.

The CrMS is a standardized modification of the Billings Ovulation Method.

In the CrMS, the “biomarkers” of the menstrual cycle are observed and recorded using a standardised recording system, (VDRS). These biomarkers are observed externally as there are no internal examinations required when using the CREIGHTON MODEL System.

The observation and tracking of the various biological markers, when charted correctly, empowers a woman to know when she’s fertile and infertile. These markers include the menstrual flow, the cervical mucus discharge and the presence of dry days in the cycle. The CREIGHTON MODEL FertilityCare chart, also creates an accurate picture and reveals pertinent information of the state of a woman’s procreative and gynaecological health.

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How do I learn the Creighton Model FertilityCare System (CrMS)?

The CrMS is taught through a series of structured sessions called Follow Ups. During these sessions a qualified Practitioner leads the client through a set format which covers all aspects of the use of the system.  Time is spent reviewing the client’s chart and discussing any issues or questions that may arise. These sessions allow the client to learn the system thoroughly.  Personalized tuition provided by the Practitioner encourages growth and confidence in the use of the CrMS.  Over the course of the first year the client and the Practitioner are scheduled to meet at least 8 times. After this, follow ups occur as required.

Can NaProTECHNOLOGY help with male factor infertility?

Yes. If the primary diagnosis is a male factor, couples have had successful pregnancies using NaProTECHNOLOGY. Men with very low sperm counts or anti-sperm antibodies can be treated. Often, improvements in semen quality can be made by healthy lifestyle changes. A number of medical and surgical treatments can also improve semen quality and sperm function. Even if the sperm function is not ideal, evaluating and maximizing the woman’s fertility cycle, together with ideal timing of intercourse, will often result in pregnancy.

What is the role of the FertilityCare Practitioner in NaProTECHNOLOGY?

A client who receives NaProTECHNOLOGY medical treatment from a NaPro trained Doctor will continue to see a FertilityCarePractitioner to keep track of changes within the cycle and to monitor progress in fertility management.

How does the Creighton Model FertilityCare system work?

Women are taught to make precise observations of their vaginal discharge each day.  These observations are interpreted and give reliable identification of days of fertility and infertility.  They may also help determine whether or not a woman is ovulating and if their reproductive organs are functioning normally.

Who created the Creighton Model FertilityCare System?

The CrMS has been extensively evaluated over the past 35 years through research, first at St. Louis University and Creighton University Schools of Medicine and, most recently, at the Pope Paul VI Institute for the Study of Human Reproduction (Omaha, Nebraska).  It was created based on these in-depth studies.



How does this relate to the rhythm method, or natural birth control?

The CrMS is not the rhythm method. The calendar rhythm method is based on statistical guesswork to identify the day of ovulation. The CrMS is based on a reliable sign of fertility, and works regardless of cycle length or cycle irregularity.  It is a scientifically proven method.


The CrMS is not natural birth control. It does not suppress or alter natural fertility in any way. But it can be used as a natural means for true family planning – meaning that it can be used reliably either to avoid pregnancy or to conceive

Why can’t I just learn this out of a book?

A teacher is essential in almost any type of education, not to mention an area as important as family planning.  A book cannot adequately teach a human skill.  The printed page cannot empathise with individual needs and concerns.  Saving money in bypassing personal instruction will limit the effectiveness of a reliable natural method.  The CrMS can only be learned properly with professional guidance from a qualified Practitioner trained to meet each individual’s situation.

What is endometriosis?

  • This is a condition where cells from within the uterus move and implant themselves in other locations.  When the cells take up their new location they continue to be hormonally responsive.  Some women experience no symptoms; others suffer severe menstrual cramps and painful intercourse.  This condition is often associated with infertility.

What is PCOS?

  • Polycystic Ovarian Syndrome is a hormonal imbalance that causes the ovaries to malfunction and is the most common hormonal disorder in women.  The classic signs are a long or irregular cycle.

What is dysmenorrhea?

  • It’s the suffering of severe menstrual cramps.  The primary cause is an excess of one hormone, which causes uterine contractions, which causes the pain of cramps.

How soon in the pregnancy can I get an ultrasound scan? At what stage can we see the embryo’s heart beat?

  • Early Pregnancy Scan as early as 3 weeks after the positive test – 7 weeks gestation. At this stage, a heart beat should be detected.

What is PMS?

  • Premenstrual syndrome affects 40% of women approximately 7-10 days before their period.  Symptoms include: irritability, breast tenderness, bloating, weight gain, cravings for carbohydrates, crying easily, depression, headaches and insomnia.  Often the cause of PMS is a hormonal imbalance that we can easily treat.

What is postpartum depression?

  • Up to 40% of women experience this condition, usually within 3 weeks of delivery.  Progesterone injections are 95% effective in halting this condition and far exceed the effectiveness of either psychotherapy or antidepressants.