Many women feel weak, tired and sleepy after pregnancy, these are normal physiological phenomena, and the growth of the fetus also requires more rest. Usually the drowsiness of pregnant women at the beginning of pregnancy is a normal physiological phenomenon, mainly due to the secretion of hormones in the body. The increase in secretion of chorionic gonadotropin at the beginning of pregnancy makes the body extremely fatigued and pregnant women are drowsy. After pregnancy, the body will secrete a kind of luteinizing hormone, the role of this hormone is to make the uterine muscles become softer, which is conducive to the implantation of the fertilized egg and the placenta, to prevent miscarriage, but this hormone also has a similar effect of anesthesia, resulting in the pregnant woman’s slow reaction, weakness, feeling “always want to sleep”. There is also an increase in the metabolism of pregnant women, combined with pregnancy vomiting and other reasons, and insufficient blood sugar is also a cause of drowsiness in pregnancy. For pregnant women, drowsiness during pregnancy is usually due to hormone secretion and blood sugar problems, which is a normal physiological phenomenon, pregnant women just need to ensure sufficient sleep, appropriate outdoor activities in the sun, to avoid hypoglycemia, there is no need to be too nervous. If abnormalities occur, it is recommended to consult a doctor promptly.