Nishmat's Women’s Health and HalachaIn memory of Chaya Mirel bat R' Avraham

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Fertility Treatments & Fasting

In the following situations, a woman undergoing fertility treatments need not fast on minor fast days, should eat and drink as necessary on Tisha B’Av, and should drink nourishing liquids in shiurim on Yom Kippur:

  • On the day of embryo transfer
  • While undergoing ovarian stimulation
  • When at risk for ovarian hyperstimulation syndrome
  • In the early stages of pregnancy following fertility treatments, until a heartbeat has been detected


Other situations depend on specific medical guidance and halachic consultation.

This ruling is based on consultations with Dr. Yardena Hyman, Dr. Deena Zimmerman, and Rav Yehuda H. Henkin.

Yoetzet Halacha Fertility Counselors are available for free consultation on these and other matters related to fertility, details here.

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All health and health-related information contained within Nishmat's Women's Health & Halacha Web site is intended to be general in nature and should not be used as a substitute for consulting with your health care professional. The advice is intended to offer a basis for individuals to discuss their medical condition with their health care provider but not individual advice. Although every effort is made to ensure that the material within Nishmat's Women's Health & Halacha Web site is accurate and timely, it is provided for the convenience of the Web site user but should not be considered official. Advice for actual medical practice should be obtained from a licensed health care professional.