What is the non-invasive DNA testing method for pre-born men? Non-invasive DNA testing for male pregnancies is a method of confirming the gender of the fetus by extracting DNA from the blood of pregnant women and analyzing the DNA of the male fetus. Compared with traditional amniocentesis and chorionic villus tissue testing methods, non-invasive DNA testing does not require puncture operations and tissue sampling and removal, and is safer, more reliable, and more convenient and faster. This testing method can provide a high degree of accuracy and is especially suitable for older pregnant women or high-risk pregnancies.