Egg Sharing

What is Egg Sharing?

Lauren Makler
Lauren Makler
Last updated: December 22, 2025

Egg sharing programs exist worldwide to help make fertility care more accessible. Egg sharing generally describes when a woman undergoes an egg retrieval, and the resulting eggs are used by more than one person or family. In some programs, two families needing an egg donor will share the cost of one donor egg retrieval. In other programs, women will donate their eggs to pay for IVF.

In Cofertility’s Split program, women can freeze their eggs for free when they donate half of the retrieved eggs to a family who can’t otherwise conceive. Families pursuing egg donation to build their family can match with an egg donor on our platform.

Egg sharing programs in your area

We work with families and egg donors around the world! Cofertility is unique in that we are clinic-agnostic, as long as the clinic reports outcomes to SART and has a CAP certified lab. Some clinics have specific requirements related to working with outside donors and have policies in place for how they handle those cases. If you already have a clinic in mind, reach out to our team and we can send a list of questions that we recommend you ask them before getting started.

Benefits of egg sharing

We stand for reproductive choice. And egg freezing is just that — a choice that a woman makes over her own body and future. The American Society for Reproductive Medicine (ASRM) states that egg freezing “promotes social justice by reducing the obstacles women currently face because their reproductive window is smaller than men’s.” We couldn’t agree more, and we’re proud to do our part to lessen constraints placed on women by offering more accessible egg freezing options.

The benefits for egg sharers (or who we call Split Members) include:

  • Freeze and store your eggs for 10 years, entirely for free
  • Connect with others going through the process in our private online community
  • The opportunity to make someone’s family building dreams a reality

Building your family through a shared egg donor program

There are many reasons you may be looking for an egg donor to help build your family. Cofertility’s unique model empowers women to take control of their own reproductive health while giving you the gift of a lifetime. Our donors aren’t doing it for the cash – they keep half the eggs retrieved for their own future use, and donate half to your family.

Shared vs. one-on-one egg donation

Shared egg donation (when the egg donor gets to keep half of the eggs retrieved for her own personal use) is a wonderful way to build your family while supporting the reproductive options of the donor. A 2003 UK study of egg sharing amongst IVF patients found that participating in an egg sharing program did not compromise the chance of achieving a pregnancy or live birth for the egg sharer or the recipient.

The concept of egg sharing is not new, but we are excited to scale this amazing offering to women and families around the globe in a new way.  At Cofertility, we’re reshaping fertility preservation and third-party reproduction so it’s more accessible, human, and community-driven, recognizing that the way we build families is more dynamic than ever and that everyone deserves a great experience. If we can help you on your journey, please reach out.

Interested in freezing and donating half your eggs to a family that can’t otherwise conceive? Check out our Freeze program.

Interested in building your family through egg donation? Check out our egg sharing platform.

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Lauren Makler
Lauren Makler
Lauren Makler is the Co-Founder and CEO of Cofertility, a human-first fertility ecosystem reimagining egg freezing and egg donation. Previously, she founded Uber Health, helping millions of patients access care through transportation. Shaped by her own fertility journey, Lauren is passionate about expanding reproductive choice and access. She was named one of Fast Company’s Most Creative People in Business.
Read more from Lauren Makler

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What is Egg Sharing?

About

Egg sharing programs exist worldwide to help make fertility care more accessible. Egg sharing generally describes when a woman undergoes an egg retrieval, and the resulting eggs are used by more than one person or family. In some programs, two families needing an egg donor will share the cost of one donor egg retrieval. In other programs, women will donate their eggs to pay for IVF.

In Cofertility’s Split program, women can freeze their eggs for free when they donate half of the retrieved eggs to a family who can’t otherwise conceive. Families pursuing egg donation to build their family can match with an egg donor on our platform.

Egg sharing programs in your area

We work with families and egg donors around the world! Cofertility is unique in that we are clinic-agnostic, as long as the clinic reports outcomes to SART and has a CAP certified lab. Some clinics have specific requirements related to working with outside donors and have policies in place for how they handle those cases. If you already have a clinic in mind, reach out to our team and we can send a list of questions that we recommend you ask them before getting started.

Benefits of egg sharing

We stand for reproductive choice. And egg freezing is just that — a choice that a woman makes over her own body and future. The American Society for Reproductive Medicine (ASRM) states that egg freezing “promotes social justice by reducing the obstacles women currently face because their reproductive window is smaller than men’s.” We couldn’t agree more, and we’re proud to do our part to lessen constraints placed on women by offering more accessible egg freezing options.

The benefits for egg sharers (or who we call Split Members) include:

  • Freeze and store your eggs for 10 years, entirely for free
  • Connect with others going through the process in our private online community
  • The opportunity to make someone’s family building dreams a reality

Building your family through a shared egg donor program

There are many reasons you may be looking for an egg donor to help build your family. Cofertility’s unique model empowers women to take control of their own reproductive health while giving you the gift of a lifetime. Our donors aren’t doing it for the cash – they keep half the eggs retrieved for their own future use, and donate half to your family.

Shared vs. one-on-one egg donation

Shared egg donation (when the egg donor gets to keep half of the eggs retrieved for her own personal use) is a wonderful way to build your family while supporting the reproductive options of the donor. A 2003 UK study of egg sharing amongst IVF patients found that participating in an egg sharing program did not compromise the chance of achieving a pregnancy or live birth for the egg sharer or the recipient.

The concept of egg sharing is not new, but we are excited to scale this amazing offering to women and families around the globe in a new way.  At Cofertility, we’re reshaping fertility preservation and third-party reproduction so it’s more accessible, human, and community-driven, recognizing that the way we build families is more dynamic than ever and that everyone deserves a great experience. If we can help you on your journey, please reach out.

Interested in freezing and donating half your eggs to a family that can’t otherwise conceive? Check out our Freeze program.

Interested in building your family through egg donation? Check out our egg sharing platform.