Medical methods to predict the sex of the baby are quite reliable, but have the disadvantage that must wait for the right moment
A still experimental technology uses a blood sample from the mother and baby key DNA. Their analysis to diagnose some disorders, besides knowing the sex of your child.
This test can be performed from the seven weeks of pregnancy, although his certainty increases if applied in more advanced pregnancies. Whether you take it at home or wherever your doctor, the blood sample must be sent to a specialized laboratory for analysis.
According to a study published in the Journal of the American Medical Association, the reliability of these tests walks about 95% (for those performed by a doctor).
The manufacturer of home blood test reliability located in 98%, as published in the packaging (use this link to compare prices and buy home test to predict the sex of the baby on the Internet).
An ultrasound provides a picture of the baby and anatomy, which also lets you identify your sex -in both your little collaborate and let yourself see.
Baby’s genitals are clearly visible from five months pregnant. As part of your prenatal care, around this time you tend to have an ultrasound to evaluate the development of your child, and if your position permits and you want you can also know the sex of the baby.
Despite being a fairly reliable method, ultrasounds are not infallible, as they also allow for human error. In fact, a study by the University of Ilorin, Nigeria, found that more than 5% of the participants were erroneous results.
The key to an ultrasound is accurate, is the time testing and technical or medical experience is made. The most common mistake is to predict a child if the male organs are not developed enough, the test is done ahead of time or image quality prevents identification.
In an ultrasound image, the vagina is often seen as two tiny hairlines, while a small bump is a sign of baby’s penis. To give an idea of what to look for, take a look at these photo galleries (English)
Amniocentesis is a test that is extracted and analyzed a sample of your amniotic fluid. Its main goal is to diagnose or rule out birth defects, but also provides accurate results on the sex of the baby.
This is an invasive test that carries a low risk of infection and spontaneous abortion, so it is not recommended unless it is strictly necessary in cases of high risk pregnancies. Amniocentesis should be done between 15 and 20 weeks of pregnancy.
Chorionic villus sampling, or proof of chorionic villus sampling is an invasive test (similar to amniocentesis) to be held in the third month of pregnancy.
It involves the extraction and analysis of a sample of tissue surrounding the fetus and placenta. This sample contains the same genetic makeup cells baby, so also can reveal her sex. However, its main goal is to diagnose genetic and chromosomal disorders, and carries risk of spontaneous abortion and infection. It is not recommended you have it unless necessary.