Nucleic acid testing usually refers to the nucleic acid test for the novel coronavirus, which usually has no effect on the pregnant woman or the fetus. Nucleic acid testing usually involves taking throat swabs and nasal swabs from the nasopharyngeal and oropharyngeal areas and obtaining mucus from these areas to test for the nucleic acid of the novel coronavirus. Simply taking a specimen will not cause contractions to occur, and will not adversely affect the pregnant woman or the fetus. The purpose of nucleic acid testing of pregnant women is to confirm whether the patient is infected with the novel coronavirus. In order to reduce the risk of transmission of the new coronavirus, pregnant women are generally required to do nucleic acid tests when they are hospitalized, and they have to test negative for nucleic acid before they can be routinely hospitalized for labor and delivery. Therefore, during pregnancy, pregnant women should, under the guidance of a doctor, have a nucleic acid test done in a timely manner to determine whether they are infected with the virus.