Pregnancy at the age of 40 is relatively old and is a high-risk pregnancy for women of advanced age. Routine eugenics and health checkups are required, starting with routine blood tests, blood type, liver and kidney function tests, blood glucose and lipid tests, blood pressure and blood pressure checks, as well as eugenics tests and folic acid bioavailability tests. During the 6-8 weeks of pregnancy, ultrasound is routinely performed to find out if the pregnancy is intrauterine, and if it is intrauterine, even progesterone, estradiol and blood HCG tests are performed to understand the development of the embryo. NT test should be performed at 11-13 weeks of gestation; amniocentesis or non-invasive DNA test should be performed at around 16 weeks of gestation to find out whether the fetus has congenital dysmorphism or abnormal development. Because of the older age of 40, more pregnancy tests should be performed. If there is no abnormality in the test, you should relax and keep your mood happy, strengthen nutrition and ensure balanced nutrition.