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Walter G. Wasser

Combining Faith and IVF for Parenthood

In today’s Daf Yomi (Bava Batra 119b), we read about the daughters of Tzelofchad, whose righteousness led to miraculous childbirths, even at an older age:

“Rabbi Yochanan said in the name of Rabbi Shimon ben Yohai: The daughters of Tzelofchad were wise, righteous, and discerning…and because of their righteousness, they bore children even at an older age.”

This Talmudic passage reflects the faith-based belief that spiritual merit can overcome natural limitations. However, in the modern era, we are fortunate to also have advanced medical technologies like in-vitro fertilization (IVF) to help overcome biological challenges such as age-related fertility decline.

Understanding the Numbers

As fertility typically begins to decline after age 30, IVF offers many women hope. For women around 40 years old, the success rate per cycle is usually around 20-30%. While this may seem low, the cumulative probability of success increases significantly with multiple IVF attempts. For instance, with a 25% success rate per cycle, the chances of at least one successful pregnancy after five attempts can rise to about 76%.

Using binomial probability, we can calculate the likelihood of success over several cycles, showing that multiple attempts can greatly improve a woman’s chance of achieving pregnancy. This mathematical approach complements the emotional and spiritual dimensions of the fertility journey, offering practical hope to couples seeking to build a family.

The Righteousness of Building Jewish Families in the Modern Era

Judaism places a central value on family, with the Torah commanding us “פְּרוּ וּרְבוּ”—“be fruitful and multiply” (Bereishit 1:28). Building Jewish families is not only a fulfillment of this mitzvah, but in today’s context, it is also an act of righteousness. The intersection of faith and modern medicine allows couples to fulfill this commandment even in the face of fertility challenges.

By embracing both spiritual faith and the tools of science, such as IVF, couples are able to pursue their dreams of parenthood. Whether through the merit of righteousness, as in the case of the daughters of Tzelofchad, or through the advances of modern medicine, the journey to parenthood remains one of hope, perseverance, and faith.

About the Author
The author is a specialist in nephrology and internal medicine and lives with his wife and family in Jerusalem.
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