When Is PGD Application Done? Georgia IVF Center Guide

Couples who learn that they may pass a genetic condition to their child often ask the same practical question: when is PGD application done? Preimplantation genetic diagnosis, usually shortened to PGD, is carried out during an IVF cycle, but the exact timing depends on several stages that begin long before the embryo is tested and continue after the result is known. Understanding the calendar helps you plan travel, work leave and emotional energy. A Georgia IVF center, clinic or hospital in Tbilisi or Batumi can guide you through each stage, and many international patients choose Georgia for this reason. This guide explains when PGD is applied, how long each step takes, which preparations must come first, how timing differs between types of testing and what to ask a clinic before you book. Details and prices are approximate and can change, so always request a written plan and consult a qualified fertility doctor and genetic counsellor.

What Is PGD And Why Does Timing Matter?

Preimplantation genetic diagnosis is a laboratory technique that examines embryos created through IVF for a specific genetic disorder before any embryo is placed in the uterus. The term PGD has traditionally been used for testing of single gene conditions and chromosomal rearrangements, while newer terminology divides the field into PGT M, PGT SR and PGT A. In everyday conversation, many people still say PGD for all of them.

The Basic Idea Behind PGD

During IVF, several eggs are collected and fertilised in the laboratory. The resulting embryos grow for a number of days. At a precise point in development, a few cells are removed and analysed. Only embryos that are free of the targeted condition are considered for transfer. Because embryos continue to develop in the laboratory, every step must be performed within a narrow time window.

Why The Calendar Is Important

An embryo cannot wait indefinitely in a dish, and a woman's hormonal cycle cannot be paused at will. The biopsy must be done when the embryo is ready, the result must be prepared in time and the transfer must happen when the uterine lining is receptive. If any of these steps is poorly planned, a cycle may be delayed or an embryo may need to be frozen. Good planning protects both your time and your chances.

The Short Answer: When Is PGD Application Done?

In most modern clinics, the biopsy for PGD is performed on day five or day six after fertilisation, when the embryo has reached the blastocyst stage. The cells are taken from the outer layer, called the trophectoderm, which will later form the placenta. After the biopsy, the embryo is usually frozen, and the sample is sent for analysis. A healthy embryo is then transferred in a later frozen cycle, once the result is available and the uterus is ready.

The Overall Timeline

From the first consultation to the transfer of a tested embryo, the whole path commonly takes between two and four months for families who need a family specific test, and between four and eight weeks for chromosome screening alone. The stimulation and egg retrieval part of the cycle takes about two to three weeks, the biopsy follows five to six days after fertilisation and results usually arrive within a few days to two weeks.

Day Of Biopsy Versus Day Of Transfer

It is important to separate two dates. The PGD application, meaning the biopsy, happens in the laboratory on day five or six. The embryo transfer happens later, often in the following cycle, when the result is ready. Many couples are surprised to learn that the transfer does not take place in the same week as the biopsy.

Stage One: Preparation Before The IVF Cycle

Before any treatment begins, the laboratory and the doctor must prepare the ground. This stage is often the longest and is the most common reason for delay, so it deserves attention.

Genetic Counselling

The first step is a detailed consultation with a genetic counsellor or doctor. Your family history, previous pregnancies, existing children and test reports are reviewed. The counsellor explains inheritance, the chance of an affected child, the limits of testing and the alternatives. You are asked to give informed consent, and it is normal to take time to think before you proceed.

Confirming The Genetic Diagnosis

The laboratory needs to know the exact gene variant or chromosome change in your family. If you already have a clear report, this can save time. If the variant is unknown, additional tests on the parents and sometimes on an affected child or relatives are needed. This part can take several weeks, depending on the complexity of the condition.

Designing A Family Specific Test

For single gene conditions, the laboratory develops and validates a test tailored to your family's variant. It uses DNA from the parents and often from relatives to confirm that the test works reliably on very small samples. This preparation usually takes between four and ten weeks, and it must be completed before the embryo biopsy is performed. For chromosome screening, no such preparation is needed, which is why it is faster.

Stage Two: Ovarian Stimulation And Egg Retrieval

Once the test is ready, the IVF cycle can start. This stage takes about two to three weeks and follows the same pattern as ordinary IVF.

Hormone Stimulation

The woman takes hormone injections for roughly ten to twelve days to help several eggs mature together. Ultrasound scans and blood tests monitor the response, and the dose is adjusted when needed. Some patients start the early part at home under remote guidance and travel to Georgia for the final days, which can shorten the stay.

Egg Retrieval

When the follicles reach the right size, a trigger injection is given, and the eggs are collected about thirty six hours later under light sedation. The procedure takes around fifteen to twenty minutes. On this day, the male partner provides a sperm sample, and the laboratory prepares both for fertilisation.

Stage Three: Fertilisation And Embryo Culture

Fertilisation for PGD is usually performed by intracytoplasmic sperm injection, known as ICSI, in which one sperm is injected into each mature egg. This reduces the risk that extra sperm DNA on the surface of the egg could interfere with the test.

Day By Day Embryo Development

On day one the embryologist checks whether fertilisation has occurred. On day two and day three the embryo divides into several cells. By day five or six, a healthy embryo forms a blastocyst, with an outer layer of cells and an inner group that will become the baby. Not every embryo reaches this stage, and the number of embryos available for biopsy is often smaller than the number of eggs collected.

Why Blastocyst Biopsy Is Preferred

Earlier approaches took one or two cells from a day three embryo. Today most centers prefer blastocyst biopsy because more cells can be taken from the placenta forming layer, which gives more reliable results and does not remove cells from the part that becomes the baby. It also allows the laboratory to avoid wasting resources on embryos that stop developing before day five.

Stage Four: The Biopsy Itself

The biopsy is performed by an experienced embryologist under a microscope. A small opening is made in the outer shell of the embryo, and a few cells are gently removed using a fine instrument, often with the help of a laser. The process takes only a few minutes per embryo.

What Happens To The Embryo

After the biopsy, the embryo is frozen using a fast method called vitrification. It is stored safely while the sample is analysed. Freezing is preferred because it gives the laboratory time to produce a careful and accurate result without hurrying the transfer.

What Happens To The Sample

The cells are placed in a tube, labelled with a unique code and sent to the genetic laboratory. Strict systems are used to prevent mix ups, and a good center will explain how identification and tracking are controlled at every step.

Stage Five: Laboratory Analysis And Results

The time needed for results depends on the type of test and the laboratory. In many cases, results for chromosome screening are available in about one week, while single gene tests may take a few days to two weeks once the family specific test is ready. If the laboratory is in another country, shipping adds a little time. The doctor then reports how many embryos are unaffected and suitable for transfer, and how reliable the result is.

Possible Results

An embryo may be reported as unaffected, affected, a carrier or inconclusive. A carrier embryo for a recessive condition will be healthy but may pass the variant on later. Some embryos may need to be retested, and some may be unsuitable. It is not unusual for only some of the embryos to be suitable.

Stage Six: Frozen Embryo Transfer

After the results are known, a frozen embryo transfer is planned. The woman's uterine lining is prepared with hormones, or the transfer is timed to a natural cycle. The embryo is thawed and transferred, usually in the cycle that follows the retrieval, although the date depends on the woman's cycle and clinic schedule.

Timing Of The Transfer

Many centers schedule the transfer within one to three months after the biopsy. If the result is delayed or the lining is not ready, the date can be moved without harming the frozen embryo. Pregnancy testing follows about ten to fourteen days after transfer.

Do You Need To Stay In Georgia The Whole Time?

Not necessarily. Many international patients make two trips, one for retrieval and biopsy and another for transfer. Others complete early stimulation at home and stay in Georgia for around ten days. Ask your clinic to propose a realistic travel plan.

Timing Differences Between Types Of Testing

Not all genetic tests of embryos follow the same calendar.

PGD For Single Gene Conditions

This type requires the longest preparation, because a test must be designed and validated for your family's variant. The total path may take two to four months from the first consultation to the transfer.

PGD For Structural Rearrangements

When a parent carries a balanced translocation or inversion, the laboratory also needs preparation, although it is often shorter. Blood from the carrier parent is analysed to identify the breakpoints, and then embryos are tested for unbalanced results.

Chromosome Screening

Screening for the number of chromosomes, known as PGT A, requires no family specific preparation. Once the IVF cycle begins, the biopsy at the blastocyst stage and the result follow quickly. This makes it the fastest option, usually completed within one to two months.

Factors That Can Change The Timeline

Several factors can lengthen or shorten the schedule. The number and quality of the embryos matter, because some cycles produce few blastocysts, and a second retrieval may be advised. The response of the woman's ovaries varies, and doses sometimes need adjustment. The availability of the laboratory for the family specific test, holidays, shipping delays and the readiness of the uterine lining also play a role. Unexpected medical events, such as a cyst or infection, can postpone a cycle. Flexibility in your travel and work plans reduces stress.

When Is PGD Not The Right Choice?

PGD is a powerful tool, but it is not suitable for everyone. If the genetic variant cannot be identified, if the couple produces very few embryos or if the family does not wish to test embryos for ethical or personal reasons, other approaches may be discussed. Some families prefer natural conception with prenatal testing, donor gametes or adoption. A good doctor explains the advantages and limits of each path and respects your decision.

PGD In Georgia

Georgia has become a popular destination for fertility treatment, and many centers offer embryo testing through their own laboratories or partner laboratories.

Georgia IVF Center Services

A well equipped Georgia IVF center usually offers consultation, ICSI, blastocyst culture, embryo biopsy, vitrification and frozen transfer. Many centers have coordinators who speak Turkish, Russian and English. Ask whether the genetic analysis is done on site or abroad, and how long the family specific test preparation will take.

Legal And Travel Points

Georgia has a defined legal framework for assisted reproduction, and citizens of many countries, including Turkey, can enter without a visa for short stays. Direct flights connect Tbilisi and Batumi with major cities. Rules for embryo testing can change, so confirm which indications are allowed with the clinic and official sources before you travel.

Tbilisi Clinics And Hospitals

Tbilisi, the capital, has the largest number of IVF centers, clinics and hospitals in Georgia. Patients can choose private fertility clinics or reproductive units inside multi specialty hospitals. Hospital based units can be reassuring for families with complex medical histories. Tbilisi also offers wider access to genetic laboratories and counselling services, which can simplify the preparation stage. When comparing options, ask about the biopsy experience of the embryologists, the partner laboratory, the expected reporting time and the way results are explained.

Batumi Clinics And Hospitals

Batumi, on the Black Sea coast, is a calmer city with fewer clinics and hospitals. Its closeness to the Turkish border makes travel simple, including by road. Many centers are accustomed to international patients and offer support in several languages. Because the genetic analysis may be arranged through partner laboratories, ask how samples are shipped and how long results usually take. The relaxed seaside setting can ease the waiting periods that are part of the PGD journey.

Practical Tips To Keep The PGD Schedule On Track

Small preparations can prevent big delays, and most of them are simple. Gather every earlier genetic report, hospital letter and family record before your first consultation, and send them to the clinic in advance. Ask the laboratory for a written date by which the family specific test will be ready. Keep your passport, travel dates and work leave flexible by a few days. Follow the medication plan exactly, and report any side effects early. Arrange accommodation close to the clinic for the days around retrieval and transfer. Finally, keep a notebook with every date, instruction and answer, so you can always check what comes next and ask better questions at each appointment. Ask questions early, because clear answers always lower stress.

Costs Related To PGD Timing

Prices differ between centers and over time, so treat these ranges as rough guidance.

Treatment Costs

A standard IVF cycle with ICSI in Georgia commonly costs between about 2,500 and 4,500 euros, with medication usually charged separately. A frozen embryo transfer may cost roughly 800 to 1,500 euros.

Testing Costs

PGT A often costs about 1,000 to 3,500 euros depending on the number of embryos. A single gene test usually costs more, around 2,000 to 5,000 euros or more, because of the preparation of a family specific test.

Costs Of Delay

Two trips, extra nights in a hotel and repeated cycles can add to the budget. Ask the clinic to provide a written estimate that includes freezing, storage and any possible extra procedures.

Preparing Yourself Emotionally

Waiting is one of the hardest parts of PGD. There are several waiting periods: for the test to be prepared, for the embryos to grow, for the results and for the pregnancy test. Plan activities that help you stay calm, keep communication open with your partner and consider counselling. It is common to feel hope and anxiety at the same time.

Questions To Ask Your Georgia IVF Center

Ask how long the preparation of the family specific test will take and which documents are needed. Ask on which day the biopsy is performed, who performs it and how many biopsies the embryologist has completed. Ask how long results take and what happens if no embryo is suitable. Ask whether the transfer is done in the same trip or a later one, and what the cancellation and refund terms are. Request a written timeline and price list so that you can compare centers in Tbilisi and Batumi fairly.

Frequently Asked Questions About PGD Timing

On Which Day Is The Biopsy Performed?

In most modern centers, the biopsy is done on day five or six after fertilisation, at the blastocyst stage.

Is The Embryo Transferred Right After The Biopsy?

Usually not. Embryos are frozen after the biopsy, and the transfer takes place in a later cycle when the result is ready.

How Long Do PGD Results Take?

Results often take from a few days to about two weeks, depending on the test and the laboratory.

How Early Should We Start Planning?

Start as soon as you decide to consider PGD, because preparing a family specific test can take weeks to months.

Can We Complete Everything In One Trip?

In some cases partly, but many patients make two trips, one for retrieval and biopsy and one for transfer.

Does Waiting Harm The Embryo?

No. Frozen embryos can be stored safely, and the transfer date can be adjusted when needed.

Conclusion

When is PGD application done? In most cases the biopsy takes place on day five or six after fertilisation, but the full process begins weeks or months earlier with counselling, diagnosis and test preparation, and continues with analysis and a frozen transfer. Knowing this calendar helps you plan with confidence. Georgia, with its IVF centers, clinics and hospitals in Tbilisi and Batumi, offers accessible travel, modern laboratory options and prices that are often reasonable compared with other countries.

The best decisions come from professional genetic counselling, transparent timelines and realistic expectations. Speak with a fertility specialist and a genetic counsellor, compare more than one center and choose the team that explains each stage clearly.