Pregnant women who do not see the fetal bud for 40 days of pregnancy should not worry too much, it may be a normal situation. The time of appearance of fetal bud and fetal heart is related to the woman’s own situation. If a woman has a menstrual cycle of about 28 days, she may see the fetal bud and fetal heart about 40 days after pregnancy, i.e. 5-6 weeks. If a woman has a longer menstrual cycle of 35-40 days, it may be relatively late to see the fetal bud and fetal heart, and it is normal to see no fetal bud for more than 40 days of pregnancy. If the menstrual cycle itself is short and no fetal bud appears around 40 days of pregnancy, it is necessary to go to the hospital for blood HCG test and ultrasound examination, and if it is clear that the embryo is underdeveloped or fetal abortion, the pregnancy needs to be terminated immediately. If the result of the examination is normal, the pregnant woman can rest assured and follow the doctor’s instruction for the next examination, and the fetal heartbeat and fetal bud may appear in the next maternity examination. Therefore, pregnant women should not be overly anxious, and if abnormalities occur, they should go to the obstetrics department in time and have the examination under the guidance of the doctor. Nurture the fetus peacefully, eat more nutritious food and take folic acid supplements in general.