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Thursday, 21 September 2023 02:35

How Can I Know the Sex of My Future Baby?


Welcome to an eye-opening journey into the incredible world of genetics and reproductive science. The science of how a baby's sex is formed is complex and fascinating. What if you could push it a notch further?  What if you could choose the sex of your future child? With advances in Preimplantation Genetic Diagnosis (PGD) and Next Generation Sequencing (NGS), this is becoming a distinct possibility. In this article, we'll delve into the science behind these technologies and how they are reshaping our reproductive choices.

How is the Sex of a Baby Formed?

The formation of a baby's sex begins long before the baby arrives. This intricate process starts with chromosomes, which are essentially bundles of DNA that dictate everything from your eye color to, yes, your sex. The magical moment of this decision happens during conception when a sperm cell from the father fertilizes an egg cell from the mother.

Understanding Genetics and Chromosomes

The building blocks of life are more than just cells; they are specific instructions encoded in DNA. These genetic blueprints reside in structures known as chromosomes. Humans have 46 chromosomes, arranged into 23 pairs. Among them, one pair—the sex chromosomes—determines whether you'll be male or female.

The Role of X and Y Chromosomes

Two X chromosomes define the female gender, while males have one X and one Y chromosome. When a sperm cell carrying an X chromosome fertilizes an egg (which always carries an X chromosome), the result is a female baby. Conversely, when a sperm carrying a Y chromosome wins the race, a male baby is conceived.

What Happens at the Moment of Conception?

The process of conception is like a microscopic lottery. During fertilization, the sperm's 23 chromosomes pair with the 23 chromosomes in the egg. It's the combination of these chromosomes that ultimately determines the baby's sex, along with many other characteristics.

What is Preimplantation Diagnosis (PGD) NGS?

Preimplantation genetic diagnosis with Next Generation Sequencing (PGD NGS) is a modern marvel of medical science. It's a method used to examine the genetic makeup of embryos before they are implanted in the womb, thus opening the doors to a plethora of possibilities, from eliminating genetic disorders to choosing specific traits.

The Rise of PGD in Modern Medicine

As the technology behind genetic testing has advanced, PGD has risen as a key player. It's a tool used not just in fertility clinics but also in medical research, elevating our understanding of human genetics to new heights.

How is PGD Different from Traditional Methods?

Traditional methods often involve looking at a limited range of genetic markers. PGD NGS, however, offers a much more comprehensive analysis, enabling doctors to make highly informed decisions.

How is NGS Performed?

To carry out NGS, medical professionals follow a stringent series of steps, from collecting samples to interpreting data.

Sample Collection and Preparation

The first step involves extracting a few cells from the developing embryo. These cells are then subjected to DNA extraction procedures.

The NGS Process in Detail

After extraction, the DNA undergoes sequencing, where it's read like a book. The data is then analyzed to identify any genetic abnormalities or markers.

Is NGS Dangerous for the Future Baby?

As with any medical procedure, it's crucial to weigh the benefits against the risks. So far, research shows that NGS is largely safe, although the long-term effects are still under study.

Myths and Facts about NGS

Despite misconceptions, NGS does not "play God" or create designer babies. It's a diagnostic tool, not a method for custom-building children.

Benefits of NGS

NGS offers a plethora of advantages, from unparalleled diagnostic accuracy to the dawn of personalized medicine. But one of its most talked-about benefits lies in the realm of reproductive choices.

Why NGS is a Game-Changer for Future Parents

NGS has opened up new avenues for prospective parents, giving them unprecedented control over their reproductive choices. One of the most groundbreaking possibilities is the option to choose the sex of your future child. While this is a subject of ethical debate, there's no denying the transformative impact NGS could have on family planning.

NGS in the Context of Inherited Diseases

The predictive power of NGS is immense, especially for families with a history of genetic disorders.

Preimplantation Diagnosis in Surrogacy

When it comes to surrogacy, PGD plays a vital role in ensuring the health of the baby and the surrogate mother.

The Role of PGD in Surrogacy

By screening embryos before implantation, PGD maximizes the chances of a successful pregnancy and minimizes the risk of genetic disorders.

Ethical Considerations of PGD in Surrogacy

PGD in surrogacy brings up ethical concerns, especially around the use and disposal of embryos.


The realms of genetics and reproductive science are rapidly evolving, promising unprecedented opportunities and choices. From demystifying how the sex of a baby is formed to harnessing the extraordinary capabilities of Preimplantation Genetic Diagnosis (PGD) and Next Generation Sequencing (NGS), we are entering an era of remarkable possibilities. Notably, surrogacy programs offered by the Delivering Dreams agency include advanced diagnostic services. These programs not only provide all the advantages of NGS but also allow prospective parents the option to choose the sex of their future child. As we step into this promising future, such technologies are set to not just revolutionize medicine but reshape the very fabric of human life itself.


What is the primary purpose of NGS in PGD?

The primary purpose of using Next Generation Sequencing (NGS) in Preimplantation Genetic Diagnosis (PGD) is to provide a comprehensive analysis of an embryo's genetic makeup before implantation. This allows for the early detection of potential genetic disorders or abnormalities, thus aiding in the decision-making process for implantation and contributing to successful pregnancies.

How reliable is the data obtained through NGS?

The data obtained through NGS is considered to be highly reliable. NGS allows for a much more in-depth look at an individual's genome compared to traditional methods. However, like any medical test, it's not 100% foolproof. Results must be interpreted in the context of other medical information, and it's always advisable to consult healthcare professionals for a comprehensive understanding.

Can NGS detect all types of genetic disorders?

While NGS is a powerful tool for detecting a wide range of genetic disorders, it's not infallible. Some genetic conditions may be caused by factors that NGS does not measure, such as epigenetic changes or complex interactions between multiple genes. That said, NGS is continuously evolving and improving, increasing its ability to detect a broader range of genetic disorders over time.

Is PGD ethical, especially in surrogacy?

The ethics of PGD, especially in the context of surrogacy, is a subject of ongoing debate. Some argue that it allows for the selection of "designer babies," while others see it as a tool for preventing severe genetic disorders. Ethical guidelines and regulations vary by country and institution, and it's crucial to consider these ethical dimensions when contemplating PGD in surrogacy.

What are the chances of a successful pregnancy with PGD and NGS?

The chances of a successful pregnancy can be significantly improved with the use of PGD and NGS. By screening embryos for genetic disorders before implantation, these technologies increase the likelihood of a healthy pregnancy and baby. However, various factors like maternal age, health conditions, and quality of healthcare can also influence pregnancy outcomes.

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Under Ukrainian law, surrogacy is a legal affordable option for traditionally married couples to have children using their own embryos, or with either an egg or sperm donor. There must be a medical reason you can’t carry a child. You are also able to participate if you have had 4 unsuccessful IVF attempts.


Under Ukrainian law, surrogacy is a legal affordable option for traditionally married couples to have children using their own embryos, or with either an egg or sperm donor. There must be a medical reason you can’t carry a child. You are also able to participate if you have had 4 unsuccessful IVF attempts.