Non-invasive results of male and female are not accurate. Generally the non-invasive DNA process will detect the sex chromosomes, so it can tell the sex of the baby, but the result will not be written on the report, the online method to see the male and female based on the data of the non-invasive DNA report is not credible. Non-invasive DNA is a prenatal testing technology, the best time to test is usually 12-22 weeks or +6 days of pregnancy, compared with amniocentesis is safer and the examination time is faster. Only a small amount of maternal peripheral blood is collected during pregnancy and the free fetal DNA is sequenced to determine if the fetus has certain genetic disorders. Normally, trisomy 18 is usually higher than trisomy 21 and trisomy 13, and a negative number indicates abnormal fetal development. In addition, pregnant women should treat the results of non-invasive data scientifically during the pregnancy test, and let nature take its course regarding the sex of the fetus, and do not get too entangled. Because regular hospitals will not open up the technology of detecting male and female, it is not feasible to find out the sex of the fetus through non-invasive results.