In most cases, the pregnant woman may know the sex of the baby during the ultrasound performed in the middle of pregnancy, usually between 16 and 20 weeks of pregnancy. However, if the examiner technician cannot get a clear picture of the baby’s genitalia, this certainty can be rescheduled for the next appointment.
Although the development of the sex organs begins around 6 weeks gestation, the technician takes at least 16 weeks to be able to clearly observe the traces on the ultrasound, and even then, depending on the position of the baby, this observation can be difficult.
- So.
- Because this is a result that depends on the baby’s position.
- Development.
- And the experience of the test technician.
- Some pregnant women may discover the sex of the baby more quickly than others.
Although ultrasound is the most commonly used way to determine the sex of the baby, it is also possible to make this discovery if the pregnant woman needs a blood test to determine if the baby has any kind of chromosomal alteration, which can lead to Down syndrome. For example.
This test is usually done from the ninth week of pregnancy, but is reserved for women at high risk of having a baby with chromosomal changes, as it is quite expensive.
In addition, there is also the possibility that pregnant women will have a blood test after the eighth week to know the sex of the baby, known as fetal sex. But this is usually a test that is not available on the public network and is quite expensive, not covered by the SUS or by health plans. To better understand what fetal sexation is and how it is done.
In recent years several tests have been developed that can be done at home to know the sex of the baby. The urine test is one of the most popular. According to the manufacturers, this type of test can be done at home and helps the pregnant woman discover the sex of the baby by reacting the hormones present in the urine with the test crystals.
However, there does not appear to be an independent study demonstrating the effectiveness of these tests, and most manufacturers do not guarantee a success rate of more than 90% and therefore warn not to make decisions based solely on the test result. . See an example of a urine test to find out the sex of the baby at home.