Some future mothers in appearance of their tummy and state of health are trying to determine who will be born. But to know this with a probability close to 100% will help only special tests. Which, read on.

Definition of sex by ultrasound.

Ultrasound is the most popular way of determining the sex of a toddler. The accuracy of ultrasound is about 90%. At the same time, the experience of the doctor-iszist and the position of the crumbs in the womb of the mother play an important role.

The first ultrasound of the fetus is recommended for 12-13 weeks of pregnancy. It allows to identify the developmental defects. If the pregnancy is normal, next time you will be in the ultrasound examination room on the 23-25th week of an interesting situation. It is during this period that the anatomy of the fetal organs is best seen.

Genetic research.

The sex of the fetus can also be determined by studying the chromosome set. As is known, the female egg contains a pair of identical X chromosomes, while the sperm has chromosomes X and Y. Thus, if a baby has a pair of XX chromosomes, then this is a girl. Conversely, with a pair of XY chromosomes, it is said that a woman is waiting for a boy.

The Ramzi method for determining the sex of a child.

This method of determining the sex of a child is performed using ultrasound from the sixth week of pregnancy. The study is done transvaginally. According to Dr. Ramsey, the location of the chorion (the future placenta) affects the sex of the crumb: when the chorion is on the right, prepare for the birth of the son, and if on the left - wait for the girl.

Prenatal diagnosis.

With the help of prenatal diagnosis it is possible to determine the sex of the baby long before his birth. What is needed for this? Undergo a procedure of chorion biopsy and amniocentesis. The first study is allowed to pass from 10-12 weeks of pregnancy, whereas amniocentesis can be recorded starting from the 16th week of an interesting situation. The accuracy of such tests reaches 99%, but it is recommended to do their doctors only in those cases when it is necessary to identify serious fetal development anomalies.

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