Marie and Jean’s Success Story: Egg Donation at the NatuVitro Clinic

Thirty-eight years old and feeling empty after three failed IVF attempts in France. Marie remembers that day down to the smallest detail. Outside the window, Paris bustled with its usual hustle and bustle, while inside their apartment there was a deafening silence. Beside her was Jean, her forty-year-old husband, holding her hand. They had tried every available method at the best medical facilities in the French capital. The result remained the same, and with each new treatment protocol, their strength dwindled further. The years had turned into an endless cycle of hospital corridors, sterile examination rooms, and the heavy stares of doctors.

The problem lay in her critically low levels of anti-Müllerian hormone. Marie’s ovarian reserve had been depleted long before they began planning a family. French specialists threw up their hands in despair, as the chances of obtaining mature, high-quality eggs from her own body were virtually zero. Hormonal treatments, the grueling wait for a call from the lab, and tears over negative hCG test results became their daily reality for several years. Each new round of stimulation took a heavier toll on Marie’s body, without bringing them any closer to their cherished goal. Reproductive specialists candidly acknowledged the ineffectiveness of standard protocols in the face of the biological depletion of her follicular reserve.

They had to either accept their situation or seek a completely different path. They chose the latter.

First Online Consultation with the Doctor

NatuVitro Reproductive Medicine Clinic came to their attention thanks to international reviews and recommendations from couples with similar medical histories. The first consultation took place via remote video call. The doctor appeared on the screen.

The doctor carefully reviewed the medical records from France, the graphs showing the decline in AMH levels, and the stimulation protocols. He didn’t make empty promises. The conversation was extremely candid yet sensitive. The doctor explained right away that continuing stimulation with their own oocytes would only waste time and emotional energy, and that the most reliable and physiologically sound path to having a healthy child in their situation was through an IVF program with egg donation. The doctor described in simple terms the difference between the chromosomal status of cells in cases of age-related decline in ovarian reserve and the potential of donor material. For Marie, this was a turning point. The tension that had been building up for years began to slowly subside in the face of professional clarity.

In Spain, this process is strictly regulated. The doctor explained all the legal requirements in detail. The law protects the complete anonymity of donation, so prospective parents and the donor will never learn each other’s personal information. All candidates must undergo a multi-stage screening process, including comprehensive genetic panels, karyotyping, tests for hidden mutations, and an in-depth psychological evaluation. The somatic health of the donor’s closest relatives is also checked to rule out the risk of transmitting hidden pathologies. Upon hearing these clear medical arguments, Marie and Jean breathed a sigh of relief for the first time in many months. They now had a clear plan of action.

Preparation and Coordination Across Cities

The couple did not need to stay in another country for months. The clinic organized the logistics so that patients would be disrupted as little as possible from their usual work schedules. Marie and Jean continued to live in Paris. Their daily routines remained virtually unchanged, which helped them maintain their peace of mind and normal work rhythm.

The doctor devised a personalized program of gentle hormonal preparation of the endometrium. Every step was monitored remotely. French gynecologists performed routine ultrasounds to measure the thickness of the endometrial lining, took follow-up blood tests for estradiol and progesterone, and promptly forwarded the results to Spain. The doctor analyzed the progress in real time and adjusted the medication dosages. He assessed not only the thickness of the tissue in millimeters but also its characteristic three-layer structure, which indicated readiness for implantation. The coordinated efforts of the French and Spanish teams made it possible to completely avoid any organizational stress.

Donor Selection According to Strict Standards

While Marie’s body was preparing to receive the embryo, NatuVitro coordinators searched for the ideal donor. Phenotypic matching criteria were followed with the utmost precision. The clinic approached the matter with meticulous care, striving to pass on the family’s distinctive traits to the child.

The specialists took Marie’s European phenotype into account:

• skin tone and natural hair texture;
• height and body type;
• eye shape and color;
• blood type and Rh factor.

The selected female donor was young, physically healthy, and had successfully undergone comprehensive genetic screening for monogenic hereditary diseases. Throughout the entire preparation period, the doctor stayed in regular contact, keeping the couple informed of every step and alleviating even the slightest concerns of the prospective parents. He patiently responded to dozens of emails and phone calls, giving the couple the feeling that they were surrounded by the constant care of an experienced team.

The Laboratory Phase and the Work of the Embryologists

The day of the donor’s egg retrieval arrived. The egg retrieval procedure took place in the operating room of the clinic in Spain under full anesthetic control. The retrieved mature oocytes of the highest quality were immediately transferred to the embryology laboratory. Ideal conditions for temperature, humidity, and air composition were maintained in sterile chambers.

On the same day, Jean’s sperm was prepared for fertilization using the ICSI method. The embryologist manually selected the morphologically soundest and most active sperm for each oocyte and injected it with a micro-needle directly into the cell’s cytoplasm. This method eliminated any chance of error and guaranteed the highest possible rate of successful fertilization. High-tech optics made it possible to assess the ultrastructure of each sperm before injection.

Then came the days of waiting. The resulting embryos were cultured in next-generation multi-gas incubators. A continuous monitoring camera tracked cell division around the clock without disrupting the microclimate of the environment. The embryos were not removed for microscopic evaluation, which preserved the stability of their environment. They successfully passed through the critical cleavage phases and safely reached the blastocyst stage on the fifth day. This indicated their high viability and genetic integrity.

The Long-Awaited Transfer and Two Lines

When the blastocyst was ready and Marie’s endometrium had reached optimal structure and receptivity, the couple flew to Spain. The trip took only a few days. For them, this short journey felt like a brief vacation, free from the clinical hustle and bustle of previous years.

The doctor personally performed the embryo transfer. The procedure took just a few minutes, was completely painless, and was conducted under continuous ultrasound monitoring. A flexible catheter delivered the embryo to the most favorable area of the uterine cavity. Marie stayed in a comfortable day-care room for about another hour, holding her husband’s hand, after which they were able to go for a leisurely walk, and the next day they flew back to Paris.

Two weeks later, the morning of the follow-up blood test arrived. A call from the lab found Marie at home. Her beta-hCG level showed a clear and high result: she had become pregnant on the first transfer attempt. After years of pain and disappointment, the realization set in that a new life was taking shape inside her. Tears of joy replaced years of tension.

The first ultrasound scan confirmed that the embryo was properly implanted in the uterine cavity. At the next ultrasound, Marie and Jean heard the rhythmic beating of the tiny heart for the first time. That sound erased all memories of past setbacks forever.

Support Throughout the First Trimester

After the positive test, contact with the clinic continued. The doctor continued to monitor the patient remotely, gradually reducing the dosage of maintenance therapy as the placenta matured. The coordinators remained available around the clock for consultations regarding her well-being. The Parisian obstetrician managed the pregnancy in strict accordance with the recommendations of his Spanish colleagues, which gave the couple complete peace of mind and confidence in a successful outcome.

The journey from the first video call to a stable, progressing pregnancy took about half a year. This clinical case demonstrated that competent cross-border medical care, the professionalism of embryologists, and a sensitive, individualized approach can overcome even the most challenging reproductive history. Today, Marie and Jean are sharing their story so that other couples do not lose faith in a favorable outcome, even after a series of setbacks.

Questions and Answers

Why do donor oocytes offer the best chance when AMH levels are low?

Anti-Müllerian hormone reflects the number of follicles remaining in the ovaries. When AMH levels drop significantly, stimulation often results in empty follicles or oocytes with chromosomal abnormalities that are unable to develop into a healthy embryo. Donor eggs from young, medically screened women possess the highest genetic potential, which increases the likelihood of a clinical pregnancy to seventy percent per embryo transfer.

How Spain’s Donor Anonymity Law Works

Spanish law strictly protects donor anonymity in the interests of both parties. The donor’s personal information is not disclosed to recipients, and the donor herself never receives information about the family or the child born. Matching is conducted exclusively by doctors and clinic coordinators based on maximum physical resemblance, eye color, hair texture, height, and blood type.

How many days do you need to spend in Spain to complete the program?

Patients undergo most of the examinations and hormonal preparation at home under a doctor’s remote supervision. You need to travel to Spain only once for a period of three to five days. This time is sufficient for the husband to provide a semen sample, for the embryos to be cultured, and for the carefully monitored transfer of the resulting embryo into the uterine cavity.

How does ICSI differ from conventional IVF?

In the conventional IVF protocol, sperm are placed in a single dish with the egg and penetrate it on their own. With the ICSI method, a specialist in the embryology laboratory selects a single, morphologically perfect sperm and, using a micro-needle, injects it directly into the oocyte’s cytoplasm. This guarantees reliable fertilization even when semen quality is compromised.

How long do embryos develop before implantation?

The clinic’s embryologists culture the embryos until the blastocyst stage, which occurs on the fifth or sixth day of culture. Only the strongest embryos with a normal karyotype reach this stage. Transfer on the fifth day most closely mimics the natural physiology of the female body, since during natural conception, the fertilized egg enters the uterus at exactly this same time

What genetic tests does a donor undergo before being accepted into the program?

Every potential donor provides a blood sample for karyotyping to rule out structural chromosomal abnormalities and undergoes comprehensive screening for recessive genetic conditions. The testing covers hundreds of common hereditary diseases, such as cystic fibrosis, spinal muscular atrophy, and fragile X syndrome. This minimizes the likelihood of passing on genetic disorders to a future child.