Most pregnancies can be detected by taking the pulse when it is about 40 days old. It takes a professional Chinese medicine doctor to take the pulse more accurately, but it is difficult to tell if the gestational sac is inside or outside the uterus. If pregnancy is detected by pulse in early pregnancy, further tests such as ultrasound or color ultrasound are needed to not only check the development of the gestational sac, but also to rule out ectopic pregnancy. If the gestational sac and fetus are well developed, the pregnancy can continue. Early pregnancy should pay attention to rest, avoid strenuous activities, strengthen nutrition, eat more vegetables and fruits, do not abuse drugs, the first three months of pregnancy should be supplemented with folic acid tablets every day to prevent fetal neural tube development defects.