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Fertility Awareness

What You Should Know and Why You Probably Don't

An excerpt from:Taking Charge of Your Fertility (Revised Edition) The Definitive Guide to Natural Birth Control, Pregnancy Achievement, and Reproductive Health

By Toni Weschler MPH

Pages:  1  2  3  

How often have you heard that a menstrual cycle should be 28 days and that ovulation usually occurs on Day 14? This is myth, pure and simple. And yet it is so accepted that it's sadly responsible for countless unplanned pregnancies. Furthermore, it has prevented many couples who have desired a pregnancy from attaining one. Much of this fallacy is a legacy of the dangerously inaccurate Rhythm Method, which falsely assumes that individual women have cycle lengths that, if not precisely 28 days, are reliably consistent over time. The result is that Rhythm is nothing more than a flawed statistical prediction using a mathematical formula based on the average of past cycles to predict future fertility

In reality, cycles vary tremendously among women and often within each woman herself, though most cycle lengths are 24 to 36 days. The myth of Day 14 can affect individuals in the most astounding ways:

Ilene and Mick were virgins when they got married on May 21. They wanted to start a family soon after their wedding, so they had their joint medical insurance start on May 15. When they discovered that Ilene had gotten pregnant on their honeymoon, they were pleasantly surprised that it happened so fast. Imagine their shock when the insurance company refused to cover the pregnancy and delivery, claiming that since her last period started on April 19, she must have gotten pregnant about three weeks before the wedding.

"That's impossible," she insisted. "We were both virgins until our wedding day." She tried to explain to them that her cycles had become quite long and irregular since she started jogging and dieting in order to be a "picturesque bride."

The insurance company wouldn't hear of it. They adhered to the frequently used pregnancy wheel, the calculating device that doctors rely on to determine a woman's due date. It is based on the assumption that ovulation always occurs on Day 14. As Ilene lamented, "We were sunk. How does one prove virginity in a courtroom? And why should it be anyone else's business?" Needless to say, the Day 14 myth had very expensive consequences for Ilene and Mick. The only consolation they took from their experience was the fact that their son was born just when they expected, three weeks after the insurance company 's due date! He was, in the words of Ilene, "worth all the trouble anyway."


Pages:  1  2  3  

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