When two women want to have a biological child together, IVF makes it possible for both partners to play a direct role in creating and carrying the pregnancy. The most common approach is reciprocal IVF, where one partner provides the eggs and the other carries the pregnancy. This means both women are biological mothers: one genetically, one gestationally.
How Reciprocal IVF Works
Reciprocal IVF, sometimes called ROPA (Reception of Oocytes from Partner), follows the same basic steps as traditional IVF but splits the process between two people. One partner undergoes ovarian stimulation and egg retrieval. Those eggs are fertilized in a lab with donor sperm to create embryos. Then one of those embryos is transferred into the other partner’s uterus, where she carries the pregnancy.
The partner providing eggs contributes the genetic material. The partner carrying the pregnancy contributes what fertility specialists call the “maternal environment,” which shapes fetal development through nutrient delivery, hormonal signaling, and immune interaction throughout all nine months. Research increasingly shows the gestational carrier influences gene expression in the developing baby, so both partners have a measurable biological connection to the child.
Choosing Who Does What
Couples get to decide which partner provides the eggs and which carries the pregnancy. Some make the choice based on personal preference. Others factor in medical considerations: the partner with stronger ovarian reserve might provide the eggs, while the partner with better uterine health carries. A fertility clinic will evaluate both partners and can recommend a configuration that gives the best chance of success.
Age plays a significant role. Because egg quality declines more sharply with age than uterine receptivity does, clinics often suggest the younger partner provide the eggs if there’s a notable age gap. In studies of reciprocal IVF, the average age of the egg-providing partner ranged from 32 to 36, while the gestational partner averaged 33 to 38.
Step by Step: What Each Partner Goes Through
The Egg Provider
The partner providing eggs takes injectable hormone medications for roughly 10 to 14 days to stimulate her ovaries into producing multiple eggs in a single cycle instead of the usual one. During this time, she’ll have regular ultrasounds and blood draws to monitor how the eggs are developing. When the eggs are mature, they’re retrieved through a short outpatient procedure using a thin needle guided by ultrasound. Most women describe the retrieval as mildly uncomfortable, and recovery takes a day or two.
The Gestational Partner
The partner who will carry the pregnancy takes hormonal medications to prepare her uterine lining for implantation. This involves estrogen to thicken the lining, followed by progesterone to make it receptive to an embryo. She’ll continue progesterone supplementation through the first trimester if the transfer is successful. The embryo transfer itself is quick and painless, similar to a pap smear, with no anesthesia needed.
Cycle Synchronization
If the clinic plans a fresh embryo transfer (moving the embryo into the uterus shortly after fertilization rather than freezing it first), both partners need their cycles synchronized so the uterine lining is ready at the right moment. This involves coordinated medications and monitoring for both women, adding roughly $500 to $1,500 in costs. Many clinics now prefer freezing the embryos and doing the transfer in a separate cycle, which removes the need for synchronization and can actually improve success rates.
Where Does the Sperm Come From?
Every reciprocal IVF cycle requires donor sperm. Couples can use an anonymous donor through a sperm bank or a known donor (a friend or chosen individual). Each route comes with different logistics.
Sperm bank vials typically cost $500 to $1,200 each, and most cycles use two to four vials, bringing the total to $1,000 to $4,800 plus shipping and storage fees. A known donor reduces per-cycle sperm costs but adds legal fees ($1,000 to $3,000) and mandatory medical screening. The FDA requires all sperm donors, whether anonymous or known, to be tested for HIV, hepatitis B and C, syphilis, chlamydia, and gonorrhea, among other infections. Known donors must be tested within seven days of each sperm collection.
Success Rates
Reciprocal IVF success rates are comparable to, and in some studies better than, standard IVF. Live birth rates per embryo transfer across multiple studies ranged from 29% to 57%. One study found a live birth rate of 57% per transfer for reciprocal IVF compared to 30% for standard IVF cycles in a similar population, a statistically significant difference. Another found no meaningful gap (36% vs. 41%).
The biggest factor influencing success is the age of the partner providing the eggs, not the age of the partner carrying the pregnancy. Egg quality is the primary bottleneck in IVF outcomes regardless of who carries. If the egg provider is under 35, success rates per cycle are highest. After 35, rates decline progressively, dropping more steeply after 40.
What It Costs
A single reciprocal IVF cycle generally runs $20,000 to $35,000 or more. That baseline covers the IVF procedure itself ($8,000 to $11,000), fertility medications for both partners ($3,500 to $8,000), fertility testing and monitoring ($2,000 to $4,000), and donor sperm.
Most couples end up spending more than one cycle’s sticker price. When you factor in medications, sperm, testing, genetic screening of embryos, and the possibility of needing a frozen embryo transfer cycle, realistic budgets land between $50,000 and $70,000 for the full path to a baby. Genetic testing of embryos before transfer (which screens for chromosomal abnormalities) adds $3,000 to $7,000 but can reduce the risk of failed transfers and miscarriage.
Insurance coverage varies dramatically. Some states mandate fertility coverage that includes same-sex couples, while others exclude IVF entirely. It’s worth calling your insurer early to understand what, if anything, is covered.
Legal Parentage
Reciprocal IVF creates an unusual legal situation: one partner is the genetic mother and the other is the birth mother. Parental rights laws vary by state, and not all states automatically recognize both women as legal parents. In some states, marriage alone establishes both partners as legal parents. In others, the non-gestational or non-genetic partner needs a court order, a second-parent adoption, or a voluntary acknowledgment of parentage to secure legal rights.
Most fertility lawyers recommend that both partners complete a pre-conception legal agreement and pursue whatever legal parentage protections are available in their state, even if they’re married. This is especially important if the couple later moves to a state with different laws. The legal process typically costs $1,000 to $3,000 and is one of those expenses that’s easy to overlook when budgeting for IVF but critical to get right.
Other IVF Options for Two Women
Reciprocal IVF isn’t the only path. Some couples prefer a simpler approach where one partner goes through the entire IVF process herself, both providing the eggs and carrying the pregnancy, while the other partner’s involvement is emotional and practical rather than biological. This is standard IVF with donor sperm, and it costs less because only one partner needs medical treatment.
Intrauterine insemination (IUI) is an even simpler and less expensive option, where donor sperm is placed directly into one partner’s uterus around ovulation. IUI has lower success rates per cycle (typically 10% to 20%) but costs a fraction of IVF, making it a common first step before moving to IVF if needed.
What makes reciprocal IVF unique is the shared biological connection. Both partners are mothers in a concrete, physical sense: one contributed half the child’s DNA, the other grew and nourished the child for nine months. For many couples, that shared role is the whole point.