21 Common Questions About Fetal Gender Selection: Scientific Answers to All Couples' Doubts

Fetal gender selection is among the most searched topics in the field of pregnancy and fertility. Many couples have many questions about methods, accuracy rates, costs, detection times, and even traditional myths before or during pregnancy. In this article, we have answered more than 21 of the most popular questions concerning gender selection, from “Is 100% gender selection possible?” and “What is the best scientific method?” to “At what week can the gender be diagnosed?”, “How much do different methods cost?” and “Do natural methods like the Chinese calendar or diet have a scientific basis?”. Below, we answer all these questions transparently, without promotional fluff and by stating the exact accuracy of each method based on the latest medical data and the experiences of reputable fertility clinics, so that you can make an informed decision. If you have any further questions or need a personalized consultation after reading this article, you can contact Raadina Health Medical Tourism Company.

How is Fetal Gender Determined?

The sex of the fetus is decided by the combination of chromosomes from the male's sperm and the female's egg. Humans have 46 chromosomes in total, two of which are sex chromosomes. The egg of a woman carries an X chromosome. The sperm of a man carries either an X or a Y chromosome.

If the egg (which always has an X) combines with an X-bearing sperm at conception, the embryo will be a girl. If it fertilizes with a sperm carrying a Y, the embryo will be male. According to BabyCenter, the sex of the fetus is determined at the very moment of fertilization, and there will be no genetic changes after that.

Who Decides the Gender? The Man or the Woman?

Scientifically, it is up to the man to determine the sex. This is because the woman only carries X chromosomes, whereas the man produces different sperm with X and Y chromosomes. The sex of the baby depends on which sperm chromosome fertilizes the woman's egg.

Does the Woman Play a Role in Determining Gender?

Genetically, no. However, in the process of fertility, the woman’s body plays a crucial role in forming the embryo. Some people believe that diet, changes in the pH of the vagina, and other hormonal conditions in a woman’s body change the uterine environment to promote the creation of either a male or female embryo. But so far, there is no exact and definite scientific evidence to prove this.

If Male Sperm Precedes Female Sperm, Will the Baby Be a Boy?

This question is fundamentally wrong because there are no “male sperm” and “female sperm.” The correct terms are X and Y chromosomes. Some scientific research suggests that sperm carrying the Y chromosome (which makes a boy) are faster than those carrying the X chromosome (which makes a girl). However, X-chromosome sperm are more robust and have a longer lifespan. But in the end, this difference in speed doesn’t make much difference in the natural determination of the baby’s sex.

Fetal Gender Selection Methods

Currently, fetal sex selection is mainly divided into two methods: pre-pregnancy sex selection and post-pregnancy sex determination.

Selecting Gender Before Conception

There are many ways to select the fetal gender before pregnancy, like old traditional methods and medical methods like IUI and IVF. Traditional techniques are not scientifically proven, but the IUI method increases the chances of having a baby of the desired gender by 70%. The IVF method is currently the best and most accurate method for fetal gender selection in the world, with more than 99% accuracy.

How is Sex Determined During Pregnancy?

The sex of the fetus is formed already during pregnancy and can be diagnosed by medical methods. The gender of the fetus can be determined using techniques such as Ultrasound, CVS, and NIPT during pregnancy.

Fetal Gender Testing Methods

There are many ways to find out the sex of the fetus after pregnancy, which are explained below.

NIPT Approach

This is a simple blood test on the mother that looks at fetal DNA. It is a non-invasive technique and can generally be performed from 10 weeks of pregnancy onwards. According to the medical statistics of the Mayo Clinic, one of the most reputable medical institutions in this field, the accuracy of this method is 98% to 99%.

Amniocentesis Procedure

This is an invasive method and has its risks. This procedure entails the removal of a sample of the amniotic fluid that surrounds the fetus. This test is also very accurate and can be done between weeks 15 and 20.

CVS Methodology

In this method, a sample is taken from the fetal placental tissue (chorionic villi). The CVS method is very accurate and is carried out between the 10th and 13th week of pregnancy.

Techniques for Early Fetal Gender Detection

The NIPT method is the fastest way to identify the gender of the fetus. This method determines the gender with high accuracy from week 10. An ultrasound can also be done from week 12, but it may be more prone to error at that time.

When to Determine Fetal Gender

The sex of a fetus is determined scientifically at the moment of conception, but it takes at least a few months after pregnancy to diagnose it. The NIPT test can diagnose gender with high accuracy from weeks 9 to 10, CVS from weeks 12 to 13, and ultrasound from week 15 onwards.

Is the Male Sex Determined Earlier in the Fetus?

The genital organs of a male fetus are more prominent and slightly larger than those of a female fetus. This means that in some cases, an ultrasound can detect a male fetus earlier. This is not a strict rule and only happens in some cases, depending on the size of the fetus.

Can Errors Be Made in Determining if It Is a Boy or a Girl?

The answer to this question depends on how and when the diagnosis is made. For genetic tests like NIPT and CVS after the 10th week, the margin of error is close to zero. For ultrasound, it’s all about timing. Ultrasound before week 15 has a higher chance of error. From the 16th week of pregnancy onwards, ultrasounds are accurate over 97%.

Is 100% Boy or Girl Gender Selection Possible?

A 100% guarantee of the selection of the sex of the fetus is not available with any medical method at present. But IVF is the most definitive gender selection method available globally, with a success rate in excess of 99%. This method is therefore as close to an absolute guarantee as you can get, and you can use it with confidence to select the sex of your child before conception.

Gender Selection at the Lowest Cost

The cost of IUI is much less than IVF. If you are on a tight budget, then this is a good option for you. But keep in mind this is not a guarantee; this method only increases the chances of conceiving a baby of the desired gender by 60% to 70%.

Cost of Gender Selection at Royan Institute

The cost of IUI at the Royan Institute is 7 to 23 million Tomans, and the cost of IVF is 80 to more than 200 million Tomans. The price of gender selection at the reputable and international Royan Research Institute depends on various factors such as the method of gender selection, the number of cycle repeats, the physical condition of the couple, the expertise and experience of the doctor, and other variables.

Gender Selection Success Stories: Who Has Actually Done It?

Serious fertility problems or the desire to know with certainty and accuracy the sex of their child have led people to IVF with PGT (Preimplantation Genetic Testing for diseases). International reports have indicated that this method is very reliable, with a success rate of over 99%.

Sepideh, 28, says she had two miscarriages and then gave birth to a healthy child using the IVF+PGT method. Sepideh said she and her husband wanted a boy, and they turned to IVF for gender selection. Sepideh and her husband are now parents of a healthy six-month-old boy.

Medications, Supplements, and Their Impact on Gender Selection

Women take medications and supplements during and before pregnancy, each with a specific purpose, under a doctor’s supervision.

FertilAid Pills for Gender Selection

This pill is a vital pre-pregnancy supplement that affects ovulation quality and increases pregnancy chances. It contains vitamins and minerals such as folic acid, Vitamin E, and antioxidants, but it has no effect at all in determining the fetal sex.

OvaBoost Capsules and Gender Selection

This supplement is mostly about hormone regulation and improves the quality of ovulation. Studies published in PubMed show that this capsule has nothing to do with fetal gender selection.

Letrox Pills and Having a Boy

Letrox is used to stimulate ovulation for those who have irregular ovulation cycles. This drug will increase your chances of getting pregnant, but it won’t specify whether your fetus will be a boy or a girl.

The Effect of Ovulation-Stimulating Drugs on Fetal Gender

Ovulation-inducing drugs such as Clomiphene or Letrozole affect the timing and quality of egg release, but do not influence the gender of the fetus. In actual practice, the doctor will prescribe these stimulants if the woman has mild infertility issues or lazy ovaries. They only increase the chances of pregnancy.

Gender Selection Using Gender Predictor Kits

Gender prediction kits are typically home or lab tests that measure pH, hormones, or ovulation timing to diagnose pregnancy or non-pregnancy in women. The kits are pretty good at telling you if you are pregnant, but not incredibly accurate. However, these kits can never tell the gender of the fetus.

Popular Myths About Gender Selection

Some people have believed for centuries that the sex of the fetus can be predicted by signs such as the puffiness of the woman's face, the shape of the belly, or cravings for sweets or sour foods. But none of these beliefs is true, and they have no scientific basis whatsoever.

Facial Acne and Having a Girl: Are They Related?

Many people believe that facial acne is a sign of female pregnancy, and this is not based at all on any scientific evidence.

Determining the Fetus's Gender from a Previous Child

You might think that if your last child was a boy, then the next one will be a girl, and vice versa. This belief is also completely unscientific and without certainty.

Comparison Table of Different Gender Selection Methods

There are various methods for determining gender, each with its own specific characteristics. This table summarizes the comparison of these methods.

Is Gender Selection Permissible or Not?

Laws on gender selection are different across countries. In some countries, gender selection is only allowed with a valid medical reason. In Iran, gender selection is perfectly legal with no legal issues.

Is There a 100% Guaranteed Method for Fetal Gender Selection?

Today, the most accurate and reliable method for pre-pregnancy gender selection is IVF, with a success rate of more than 99%. Raadina can assist you with free specialized consultation, referral to expert doctors, and support from start to finish of your treatment. With Raadina, you will have a healthy, successful pregnancy and enjoy the feeling of becoming a parent worry and stress-free.

Medical Tips for Parents Eager to Know the Gender

Determining and finding out the gender is very important and exciting for couples. Your choices about gender selection are important, and you will want to consider several vital factors:

• Be sensible. Impulsive, sudden decisions do not get good results. Considering all the factors, including costs, physical health conditions, age, etc., will help you make the best decision.
• Each sex selection method has its own specific advantages and disadvantages. Do your research on each method before you make your decision.
• If you are not an expert in this field, a full and specialized consultation will help you to make the best choice.
• Whichever choice and decision you make, you must place the health of the mother and fetus above all else.

Conclusion

There are several ways to choose a baby’s sex before conception, from the old, traditional ones to IUI and IVF. Among them, the IVF method is very popular with a success rate of over 99% and is used in most countries of the world.

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Frequently Asked Questions

Can we guarantee 100% gender selection?

The most accurate method of gender selection today is in vitro fertilization, which has a success rate of over 99%. This method isn’t 100% foolproof, but it is as close as medical science gets.

Is a boy's gender determined earlier than a girl's?

As a rule, it does not matter. However, sometimes a boy may be detected slightly earlier by ultrasound due to the prominent appearance of male genitalia.

When is the best time to find out the gender?

Using genetic methods, from the 10th week onwards. If using ultrasound, the best and most accurate time is from the 16th week onwards.

What is the margin of error in gender determination?

It depends on when and how you do it. The margin of error on DNA testing is almost zero. Ultrasound gender determination has a very high error rate before week 14, and about 30% (70% accuracy) between weeks 14 and 16. After week 16, the ultrasound error rate is very low (around 3%).

Do medications work for gender selection?

No, medicines only help increase the chances of pregnancy by strengthening the ovaries. There is no scientific proof of any link between medicines and sex selection.