A Boy or A Girl? A Simple Guide to IVF Gender Selection
What is IVF and Gender Selection? IVF (In Vitro Fertilization) is an assisted reproductive technology that helps you and your […]

Have you ever heard about this ancient method called the Chinese gender prediction charts? They’re pretty interesting. These charts use the lunar calendar and a simple formula that only requires two pieces of information: the month of conception and the lunar age of the pregnant person at that time.
Though it may seem inconsistent to some, the Chinese gender calendar is an exciting and playful tool to try if you haven’t used it before. Perhaps you can’t wait for the right time to identify your baby’s gender, usually around the second trimester through ultrasound; the Chinese gender chart can help you predict in a fun and exciting way if it’s a baby girl or a baby boy.
But be aware: this traditional method, the Chinese Birth Chart, won’t produce a very accurate prediction regarding gender selection.
The Chinese gender predictor calendar, sometimes called the Chinese gender chart, has a long and fascinating history. It was discovered in China over 700 years ago, reportedly found in an ancient royal tomb. According to many stories, this chart was originally created to help families plan their children and to try to predict whether they would have a boy or a girl.
Legend says the chart was used by members of the royal family and kept secret for many years. Some believe it was stored in the Qing Dynasty’s imperial palace and was only rediscovered much later. Others claim that the original chart was once housed in the Institute of Science in Beijing, although there is no solid historical proof of this.
Today, the Chinese Baby Gender Calendar is used all over the world, mostly for fun. While it is interesting to look at and can be part of cultural tradition, it is important to know that there is no scientific evidence to prove that the chart is accurate. It is more of a lighthearted way to guess a baby’s sex than a medically reliable method.
There’s an interesting explanation behind how a Chinese gender predictor works. It suggests that the hormonal changes people experience throughout the lunar months can affect their body’s acidity or alkalinity.
This change may influence which sperm, carrying either an X or Y chromosome, has a better chance of fertilizing the egg.
A Chinese gender predictor chart provides specific information, which is then used in a formula based on the Chinese lunar calendar.
Here’s a step-by-step process:
While others mention a theory based on hormonal changes affecting sperm fertilization, the core method described for using the chart relies on these dates and their conversion to the lunar calendar and traditional Chinese astrology.
Again, it’s important to remember that no scientifically proven method supports the accuracy of a Chinese birth calendar. They are presented as a fun, non-medical way to guess your baby’s sex.
Although this method has been used for many years and is said by some people to be very accurate, it does not have any scientific evidence to support it.
In fact, many scientific studies show that this chart does not work as a reliable tool. It should be thought of as just a fun activity and not a serious way to predict a baby’s sex.
While some sources claim high accuracy, such as 93%, the Chinese pregnancy calendar contrasts with medical testing.
Medical tests, including ultrasound, blood test, genetic testing, cell-free DNA (cfDNA) screening, chorionic villus sampling (CVS), and amniocentesis, are presented as the only sure way to determine a baby’s actual gender.
These medical methods are described as much more accurate and reliable, with cfDNA screening offering greater than 99% accuracy.
For a definite answer on your baby’s sex, we strongly recommend consulting a healthcare professional for medically accurate tests like ultrasound or noninvasive prenatal testing.
Most credible sources and scientific studies agree that there is no real proof to support the claims made by the Chinese gender calendar.
The chart is not based on science but comes from old folklore. Because of this, experts do not consider it a reliable way to predict a baby’s sex.
At Dunya IVF, we offer PGD (Preimplantation Genetic Diagnosis) as part of our IVF treatments, allowing intended parents to choose their baby’s sex with scientific precision.
When people predict a baby’s gender, they’re usually stuck in a guessing game that is not precisely grounded in science. Most of the time, these predictions are based on old wives’ tales, like the shape of the baby bump or how much heartburn the mom-to-be has.
But here’s the thing: they only consider two options – boy or girl – ignoring the fact that gender is a rich and complex spectrum. So, while the excitement of the prediction might be fun, it’s more like flipping a coin than anything remotely related to scientific evidence.
Therefore, any method, regardless of its scientific merit, will yield an accurate result approximately 50% of the time simply due to chance.
This statistical reality means that even the most dubious methods will sometimes appear to work, which can lead people to misinterpret random success as evidence of effectiveness.
While the Chinese calendar predictor holds cultural importance, it is important to recognize that it does not have scientific backing and should not be depended upon for precise predictions about the gender of an unborn child.
Experts describe it as a guess or a coin toss, so you shouldn’t rely on its results to make significant decisions about your pregnancy.
Ultimately, it is a fun way for entertainment rather than a reliable predictor to determine your baby’s sex.
You can interpret or read the chart using either of the two steps provided. First, on the chart’s left side, locate the mother’s lunar age. Second, find the Chinese lunar month of conception along the top. Note the point of intersection of the selected age and month. This will provide you with the predicted gender.
Be reminded that the Chinese gender calendar is based on an ancient tradition. Having said this, it has no scientific basis or proof that it would really work. However, its accuracy is 50/50 since there are only two variables: a boy and a girl.
No, not all Chinese gender calendars give the same results.
Even though they are based on the same idea, predicting a baby’s gender using the mother’s age and the month of conception – different versions of the calendar may use different charts or calculations. Some may use the lunar age (Chinese age), while others may use the actual age, which can change the result.
Additionally, many online calendars are merely for entertainment and not scientifically proven, so it’s common to receive different answers from various sources.
Through Ultrasound: An ultrasound takes pictures of your baby and shows whether you have a boy or a girl. While many doctors plan this scan between 18 and 21 weeks of pregnancy, it’s sometimes possible to find out the baby’s sex as early as 14 weeks.
Preimplantation Genetic Diagnosis or PGD, will help identify genetic anomalies and allow gender selection if needed.