Based on the fetal heart rate at 12 weeks, do you know if you are pregnant with a boy or a girl?

The 12th week of pregnancy marks many important milestones in the development of the fetus. This is also when the sex of the fetus is revealed. Through 12-week fetal heart rate, can you know a boy or a girl? Is fetal sex determination through heart rate accurate?

How does a 12-week fetus develop?

At 12 weeks , the fetus weighs about 28g, the buttocks length is about 5.3cm and has almost full body parts.

At this stage, the fetus has a great development in reflex. Your baby's fingers will soon be able to contract and stretch, the toes can be arched, the eye muscles are closed and the mouth has suckling reflex. In fact, if you tap or poke lightly on the abdomen, the baby will twitch the body in response, however, it is still quite early for the mother to feel these gestational movements.

In addition, organs such as the intestines, kidneys, and nerve cells are also perfected quickly. The baby's appearance becomes more pronounced between the head, neck, and body.

Based on 12 weeks fetal heart rate to know boy or girl is  not ?

The fetal heart is formed in the 6th week of pregnancy and beats about 110 beats / minute. In the next 2 weeks, the heart rate will increase to 150 - 170 beats / minute, twice as fast as mother's heart rate and gradually stabilize at 120 - 160 beats / minute.

The fetal heart rate of a 12-week-old baby is twice as high as an adult's and you can clearly hear these steady, strong beats during pregnancy ultrasound with intensity of about 120 - 160 beats / minute. Many pregnant mothers have whispered to each other that a heart rate above 140 beats / minute is for girls and below 140 beats / minute for boys. Is it correct?

The truth is you cannot guess the sex of the fetus based on the fetal heart rate.

There have been many studies on hearing 12-week fetal heart rate knowing whether a boy or a girl is okay. As a result, there is no difference between the heart rate of boys and girls during early pregnancy. The average heart rate for boys in the first trimester was 154.9 beats / min (+/- 22.8 beats / min) and for girls it was 151.7 beats / min (+/- 22.7 beats / minute) minute). Therefore, parents should not depend on the 12th week heart rate to determine the sex of the baby.

When can the sex of the fetus be predicted?

The baby's sex is established as soon as the sperm meets the egg, before the mother knows she is pregnant. The genitals are not growing right away, but your baby has inherited the X or Y chromosomes from their parents. Girls carry the XX chromosome while boys are XY.

In fact, boys and girls look fairly similar between 4 and 6 weeks of pregnancy. Differences are only evident at 10 weeks onwards.

The current popular methods of determining the sex of the fetus

Although the fetal heart rate cannot tell you whether your baby is a boy or a girl, there are many scientific methods to diagnose the sex of your fetus:

DNA test

This is the method of predicting the sex of the fetus with the highest accuracy (about 99%) and the earliest because it can be performed when the fetus is 10 weeks old.

The doctor will appoint the mother to perform a blood test, then conduct an analysis of the fetal cells in the mother's blood. If the mother's blood contains the Y chromosome, she is pregnant with a boy, otherwise she is pregnant with a girl.

Supersonic

Ultrasound is the most common and used throughout pregnancy, it not only helps doctors assess fetal development, screen for birth defects, but also helps mothers see pictures. photo and know your child's gender.

Methods of amniocentesis

Often used when the doctor suspects that the fetus is at risk of chromosomal problems, through which the mother knows the sex of the fetus. This method is almost able to give results with absolutely no deviation accuracy, but it is not as common as the two methods above.

The right time to do this method is between 15 and 19 weeks of gestation. Your doctor will use a long, thin, hollow needle through your abdomen and uterus to remove some amniotic fluid, which usually takes about 3 minutes and can cause pain.

Science has shown that determining the sex of the fetus via heart rate is completely unreliable. So to know if you are pregnant with a princess or a prince, you should follow scientific methods for the most accurate results!

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