The short answer

Neither option is better in general. A fresh donor cycle can produce a larger egg cohort, which matters if you want to split eggs between two fathers or plan siblings, but it depends on one person's response to stimulation and can be delayed, canceled or yield less than hoped. Frozen donor eggs are faster and come in a defined lot size, but a lot is often smaller and results depend on how those eggs perform after thaw in a particular laboratory.

What a fresh cycle looks like

You match with a donor, she completes screening and a stimulation cycle, and eggs are retrieved and fertilized within hours. Practical implications:

• schedules must align across the donor, the sperm source or sources, and the laboratory
• yield is unknown until the retrieval
• a larger cohort gives more room to divide eggs between two fathers
• cancellation is possible, and repeating a cycle costs calendar time
• a returning donor for siblings may or may not be available later

What frozen eggs look like

You reserve a lot of eggs already retrieved, screened and frozen. Practical implications:

• the unit count is known before you commit
• the timeline is shorter, with no donor stimulation cycle to schedule
• lots are often smaller, so two fathers or a sibling plan may need more than one lot
• results depend on thaw survival, fertilization and blastocyst development at your clinic with that bank
• reserving sibling lots early is sometimes possible and sometimes not

Ask the clinic for its own experience

Do not compare programs on a single headline percentage, and do not rely on a number without a denominator. Useful questions:

1. In your program, with comparable cases, how do fresh and frozen donor eggs compare on thaw survival, fertilization, blastocyst rate and live birth?
2. Is the figure you are quoting per retrieval, per lot, per transfer, per patient, or cumulative across transfers?
3. Does it include canceled cycles and cycles that produced no transferable embryo?
4. What is your experience with the specific bank and lot size we are considering?
5. What happens after low yield, no blastocyst or no euploid embryo?

National registry tables help you understand cycle types and denominators, but donor-egg recipient starts, thawed embryo transfers and patient-own-egg cycles are not interchangeable, and small clinic volumes make single percentages unstable.

What is the same either way

Screening obligations apply to both routes: federal donor-eligibility testing plus professional recommendations for genetic carrier screening, medical and family history, and psychosocial evaluation. Identity and contact planning applies to both as well. A donor may be nonidentified at the time of donation, but no program can promise lifelong anonymity, because DNA databases, relatives and online records can make identity discoverable. Plan for age-appropriate disclosure and future contact questions regardless of which route you choose.

Cost differs in structure as well as total. Published planning models place donor eggs among the larger line items in a donor-egg gestational carrier budget, but any figure is only meaningful with its assumptions stated: fresh or frozen, one lot or two, one sperm source or two, and whether capacity for siblings is included. See cost planning.

Decide from the family goal, not the first transfer

If you hope for two or three children, work backward from that goal rather than buying the minimum eggs for one transfer. Expected yield or lot size, allocation between fathers, embryo attrition, storage, and your tolerance for repeating the donor process all belong in the same conversation. More detail in choosing an egg donor and both fathers' embryos.