Non-invasive is also known as non-invasive DNA, 12-26 weeks of pregnancy is the time to do non-invasive DNA testing, and it is better to check around 16 weeks of pregnancy.
It is not advisable to do non-invasive DNA test too early, it is not suitable to do non-invasive DNA before 12 weeks of pregnancy, the fetus and the mother to exchange the fetal component is weak, it will affect the accuracy of the test.
It is also not recommended to do non-invasive DNA test after 26 weeks of pregnancy, as the fetus enters the mother’s body with more components, which will also affect the results of the test, and it is too late to find out that there is an abnormality and do induced abortion surgery, which is more damaging to the woman.
It is more appropriate to check around 16 weeks of pregnancy, and the results of the time test are more accurate. At the same time, not all pregnant women need to do non-invasive DNA testing, the results of Down’s syndrome screening for critical risk or high risk, family history of chromosomal abnormalities in the family, the age of 35 years old or older women can do non-invasive DNA testing.
It is recommended to go to a regular hospital for the test to improve the accuracy.