The size of the gestational sac at 40 days determines the gender of the baby

The size of the gestational sac at 40 days determines the gender of the baby

After pregnancy, a gestational sac will appear before the fetus is formed. The gestational sac will gradually become a fetus after continuous development. The size of the gestational sac is different at different times. We know that the country does not allow easy checking of gender after pregnancy. Some people will judge the gender of the fetus based on the size of the gestational sac. So, how do you determine the gender of a baby based on the size of the gestational sac at 40 days? Let’s take a look below.

The size of the gestational sac cannot be used to determine whether it is a boy or a girl. This method has basically no scientific basis, and we don't have to believe it. Generally, the gender of the fetus can be determined around three months into the pregnancy.

How to Scientifically Identify the Gender of the Fetus

1. Ultrasound scan: Ultrasound is a type of sound wave. Reports so far have shown that it has no adverse effects on the fetus, so it is very commonly used in the obstetrics and gynecology community. When using ultrasound to diagnose the sex of a fetus, the accuracy for a boy can reach over 95%, while the reliability for a girl is only about 85%. Moreover, the accuracy is directly related to the experience of the ultrasound technician or doctor.

2. Amniocentesis: Amniocentesis is mainly used to diagnose whether the fetus has chromosomal or neural tube defects, and is usually performed between 16 and 20 weeks of pregnancy. Since the chromosomes of the fetus can be known, the sex of the fetus can also be known. The accuracy is 99%, but there is a 1% chance of miscarriage. Therefore, the medical community does not recommend performing amniocentesis or drawing umbilical cord blood just to predict the sex of the fetus.

3. Chorionic villus sampling: also known as "chorionic villus sampling", is usually performed between 11 and 14 weeks of pregnancy. The main purpose is the same as amniocentesis, which is to diagnose whether the chromosomes of the fetus are normal, but some people also use it to diagnose the gender of the fetus. The accuracy rate can reach 98%. Although chorionic villus sampling can determine the sex of the fetus as early as 11 weeks of pregnancy, it may cause miscarriage (3% to 5%) and may also harm the fetus, causing defects in its hands and feet. Therefore, it is best not to undergo this test just to find out the sex of the fetus.

4. DNA blood test: Genetic engineering technology can be used to take the mother's blood to determine the sex of the fetus. It can be done after 8 weeks of pregnancy and has no effect on either the pregnant woman or the fetus. This technology is already very mature both abroad and in Hong Kong. It is currently the earliest, fastest and safest method to identify the sex of the fetus. Because sampling is simple and convenient, has no effect on either the mother or the fetus, and has a high accuracy rate of up to 99.5%, it has become a hot topic among modern people.

<<:  Is the menstrual period in the follicular phase or the luteal phase?

>>:  The harm of wearing a ring for a long time

Recommend

Three small actions before bedtime to relieve nasal congestion and runny nose!

Rhinitis is not a terminal illness, but it is wor...

What is the normal thickness of the lower segment of the anterior uterine wall?

Pregnant women must be aware of their own health ...

Can I take propolis if I have lobular hyperplasia?

Lobular hyperplasia is a type of breast hyperplas...

Human Chorionic Gonadotropin 13.59

When the sisters were surprised to find that the ...

Is it possible to get pregnant if you have sex on the day of ovulation?

Many couples who are preparing for pregnancy want...

Why do women lose their hair?

Female friends will experience hair loss after re...

How to do push-ups for women

We all know that push-ups are a convenient and ef...

Can I eat red dates during menstruation?

Female friends who are menstruating can eat some ...

What to do with sore eyes during confinement

If women often play with mobile phones during the...

Women must do these 10 health checks, especially after the age of 30!

If you have special health conditions or needs, p...

Bathing to detoxify helps you get slim legs

1. Take a bath every day to enhance the warm effe...

[Medical Q&A] Is moyamoya disease caused by smoke?

Planner: Chinese Medical Association Reviewer: Xu...

Can pregnant women drink cassia seed tea?

As we all know, Cassia seed tea has the function ...

The most obvious signs of pregnancy at 12 days

The 12th day of pregnancy may refer to the 12th d...

Causes of bloody vaginal discharge on ovulation day

It is common for women to have blood in their leu...