During the special period when some hospital clinics are closed, pregnant women should check the following items as far as possible during maternity checkups: 1. early pregnancy fetal nuchal translucency layer measurement (11-13+6 weeks); 2. Down syndrome screening (15-20 weeks); 3. fetal system ultrasound examination (24-28 weeks); 4. glucose tolerance test (24-28 weeks); 5. weekly maternity checkups in late pregnancy (after 37 weeks). Avoid taking public transportation during the maternity checkup, make an appointment in advance to reduce the time spent in the hospital; wear a medical mask throughout the checkup and keep a distance of more than 1.5 meters from others; wash hands and disinfect after the maternity checkup, and change clothes in time. After delivery, avoid visiting relatives and leave a family member for daily care.