Pregnancy is usually a normal phenomenon, mainly because after pregnancy, the levels of estrogen, progesterone and human chorionic gonadotropin in pregnant women’s bodies will gradually increase. At this time, the metabolism of pregnant women will be accelerated, and the consumption of calories in the body will also be accelerated, which will easily lead to a lack of blood sugar, resulting in drowsiness. If there is no other discomfort, there is no need to worry too much. In addition, the sleepiness of pregnant women may also be related to other physiological changes during pregnancy. For example, early pregnancy vomiting is more serious, which will consume a lot of physical strength of pregnant women, which will easily lead to physical weakness and sleepiness. In addition, during pregnancy, the fetus will squeeze the bladder in the pregnant woman’s body, resulting in frequent urination at night, which may affect the quality of her sleep and lead to sleepiness during the day. In addition, during pregnancy, the pregnant woman’s body will secrete luteinizing hormone. This hormone softens the muscles of the uterus and prevents miscarriage. However, it has a certain anesthetic effect, which can slow down the movement of pregnant women and cause them to be sleepy. When pregnant women are often sleepy, they can take a short break to relieve their fatigue. However, the sleeping time should not exceed one hour to avoid affecting the night rest. At the same time should develop good sleep habits, early to bed and early to rise, keep lunch break, etc., can effectively reduce the situation of sleepiness. During pregnancy, you can also eat more fruits rich in vitamins and drink more milk to supplement the nutritional needs of the fetus and yourself. However, pregnant women need to be careful not to drink coffee to refresh the brain, so as not to affect the physical development of the fetus.