In case of uncomfortable sleeping on the left side during pregnancy, the right-side lying position can be performed in moderation. Sleeping on the right side can relieve the symptoms of sleeping uncomfortably on the left side, but it is not recommended to lie on the right side for a long time, nor is it recommended to lie flat. If lying flat, it will easily lead to an increase in blood circulation, which will easily cause symptoms of chest tightness, breath-holding and panic, which will affect the health of the pregnant woman. After pregnancy, in most cases the uterus will rotate to the right, compressing the abdominal aorta, leading to poor placental blood circulation, which will cause intrauterine ischemia and hypoxia in the fetus, accompanied by stomach pain, cramping and distension. The left side of the bed can avoid these phenomena, if the left side of the bed is uncomfortable, you can take their own comfortable position in moderation. In the middle and later stages of pregnancy, it is best to pay attention to alleviate the symptoms, minimize the right side position, or sleep flat on your back.