By Dr. Nina Reshota (Licensed Physician No. 03-0314542).
Social relationships have evolved over the years and, with them, couple and family models. In addition to the traditional ones, there are single-parent families (with only one father or one mother) and families with same-sex parents. That is why assisted reproduction has become a fundamental part of motherhood for same-sex couples.

Shared motherhood in same-sex couples allows to actively share the process of gestation and reproduction. In this model, both partners participate in the process of having a child through an assisted reproduction procedure for same-sex couples. One of the most widely used techniques is Reciprocal IVF or ROPA Method, which allows both women to contribute biologically to the gestation process, one of them providing her egg and the other carrying the baby. This concept breaks with traditional models of motherhood, offering a way for both women to be biologically involved in parenting from the beginning.
These are the assisted reproduction options for female couples:
In artificial insemination, donor sperm is introduced into the uterus of one of the women in the couple. It is a simple technique that facilitates conception without the need for sexual intercourse.
In vitro fertilization (IVF) involves extracting eggs from one of the women, fertilizing them in the laboratory with donor sperm, and then transferring the resulting embryos into the uterus.
The ROPA Method is an assisted reproduction technique that allows two women to actively participate in the biological process of having a child. In this method, one of the women contributes her eggs, which are fertilized with the sperm of a donor, while the other woman carries out the gestation of the future baby in her uterus.
This means that two mothers can have a biological child, since one of them is the genetic mother and the other is the surrogate mother, thus achieving a shared pregnancy.

The objective of this technique is for both women to contribute significantly to the conception and gestation of the baby. The process is divided into different phases:
The baby will only have the genes of the mother who provides the egg and the sperm donor. The other mother does not contribute genetically, but she plays a vital role in carrying and delivering the baby.In fact, babies from egg donation can often resemble their mothers. This is due to what is called epigenetics, the science that studies changes in the function of inherited genes that cannot be attributed to alterations in the DNA sequence.
But, in addition, other factors such as the choice of a donor with the same phenotype as the recipient woman also play a role. It should also be noted that babies imitate gestures and sounds of their parents during their growth.
In Spain, sperm donation is an altruistic and anonymous act, so the recipient couples cannot know any information about the donor, although this varies depending on the laws of the country. In some countries, it is allowed to choose between a known or anonymous donor.
Nonetheless, intended parents can rest assured, as the quality of the semen is always guaranteed. Each donation undergoes a series of medical tests such as a semen analysis, microbiological culture or serology, to rule out sexually transmitted diseases and other circumstances that may affect the assisted reproduction process.
Legal requirements may vary by country. In Spain, the couple is required to be legally married or registered as a common-law partner to access treatment. It should be noted that, depending on the place where the treatment is carried out, the legislation may differ in terms of filiation rights, that is, who will be legally recognized as the baby's mothers. Therefore, it is essential to inform yourself about local regulations before starting the process.
In the ROPA Method, the woman who does not provide the egg will be the one who carries out the pregnancy and gives birth to the baby. To decide what role each of them will adopt in this process of shared motherhood for female couples, it will be necessary to take into account not only the preferences of the couple, but also the medical assessment of the specialists. It will be the experts who will report on the real chances of pregnancy of each of them based on criteria such as their age or state of health.
The age to perform the ROPA Method will depend, on the one hand, on the woman who provides the eggs, since the quality decreases over time, although this does not have to affect the process if a previous oocyte cryopreservation process has been carried out. On the other hand, the age of the pregnant woman will also influence the success of the treatment, so it is recommended not to delay the treatment excessively.
This is the testimony of Carolina and Raquel, IVF-Life patients, mothers of a beautiful baby thanks to the ROPA Method or reception of oocytes from partner.
Before undergoing the ROPA Method or any other assisted reproduction treatment, it is important to consider some key aspects: