In gestational surrogacy, the surrogate does not provide the egg. An embryo is created through IVF using an egg from an intended parent or an egg donor, then transferred to the surrogate’s uterus.
That short answer clears up one of the most common points of confusion. The longer answer depends on whose eggs and sperm are available, what the fertility clinic recommends, and which family-building path feels right to the intended parents.
The key difference: gestational surrogacy and traditional surrogacy
Most agency-supported journeys today use gestational surrogacy. The person carrying the pregnancy has no genetic connection to the embryo because her egg is not used.
In traditional surrogacy, the person carrying the pregnancy also provides the egg. That creates a genetic relationship and a different legal and medical situation. LittleBee coordinates gestational-surrogacy journeys, not traditional surrogacy.
Three common ways an embryo is created
1. An intended mother’s egg and an intended father’s sperm
The fertility clinic retrieves eggs, fertilizes them in the laboratory, and may test or freeze resulting embryos based on the family’s treatment plan. A selected embryo can later be transferred after the surrogate completes medical and legal clearance.
2. A donor egg and an intended parent’s sperm
Some families need or choose donor eggs because of age, ovarian reserve, a genetic concern, prior treatment history, or family structure. The egg donor and surrogate are different people with different roles, screening, legal agreements, and timelines.
3. Donor eggs and donor sperm, or a donated embryo
Some intended parents use both donated eggs and donated sperm. Others consider an embryo donated by another family. These routes can create additional clinic, counseling, records, consent, and legal questions that should be resolved before surrogate matching moves too far forward.
A planning conversation that prevents confusion later
Daniel and Marcus begin with a simple goal: become parents through surrogacy. Their first question is whether they should choose an egg donor before finding a surrogate.
Their clinic explains that the donor and embryo plan affects timing. The agency then helps them map the coordination points: clinic records, donor program communication, embryo readiness, surrogate matching, legal clearance, and transfer scheduling. Instead of treating each decision as a separate project, they can see one connected path.
This is why “whose egg is used?” is not only a biology question. It is also a timing, legal, emotional, and financial planning question.
Does the surrogate choose the egg donor?
No. Intended parents make decisions about egg sources with their fertility clinic and, when relevant, a donor program. A surrogate may receive medical information needed to understand the embryo-transfer plan, but she does not select the donor or control the intended parents’ genetic decisions.
During matching, both sides should still discuss expectations that affect the pregnancy and relationship. Clear communication matters even when the medical decisions belong to different people.
When should intended parents decide whose egg to use?
There is no single correct order for every family. However, intended parents usually benefit from clarifying their embryo plan early because it affects:
- whether donor resources are needed;
- which fertility clinic and laboratory will be involved;
- how long embryo creation may take;
- what records and screenings are required;
- when surrogate matching should begin;
- what legal documents may be needed; and
- the overall budget.
If embryos already exist, the clinic can review their status and discuss next steps. If embryos do not yet exist, LittleBee can coordinate with the intended parents’ clinic or help them explore independent fertility and donor resources.
Questions to ask your fertility clinic
- Can we use eggs already frozen or embryos already created?
- Do you recommend an egg donor based on our medical situation?
- What screening is required for the egg and sperm sources?
- When will embryos be ready for a possible transfer?
- Does your clinic work with gestational carriers?
- What records must be shared with the agency and surrogate’s medical team?
- Who explains embryo testing, grading, storage, and transfer decisions?
The clinic—not the agency—should answer medical questions and make treatment recommendations.
How LittleBee supports this stage
LittleBee does not retrieve eggs, create embryos, select donors, or provide medical advice. Our role is to help intended parents understand the coordination sequence and keep the right professionals connected.
We can help with:
- communicating with an existing fertility clinic;
- identifying when donor-program referrals may be useful;
- organizing records and scheduling steps;
- planning when to begin surrogate matching;
- coordinating with independent attorneys and other professionals; and
- helping intended parents understand what comes next.
Read our guide to egg donation and surrogacy if donor eggs may be part of your plan. If you are still organizing the larger journey, begin with the intended parent surrogacy guide.
Questions intended parents often ask
Is a gestational surrogate genetically related to the baby?
No. In gestational surrogacy, the surrogate’s egg is not used, so she is not genetically related to the baby she carries.
Can the same person be both the egg donor and the surrogate?
That would be traditional surrogacy, not gestational surrogacy. It involves different medical and legal considerations and is not the model LittleBee coordinates.
Do we need embryos before contacting an agency?
Not necessarily. Some intended parents already have embryos, while others are still choosing a clinic or considering donor resources. An early conversation can help you understand which decisions should happen first without committing you to move forward.
Who decides which embryo is transferred?
The decision is handled through the fertility clinic and the intended parents’ treatment plan. The surrogate’s medical consent and the terms of the legal agreement also matter. Each professional should explain the part within their role.