Women often experience a variety of signs and symptoms during pregnancy and are prone to hypotension during pregnancy, which can cause headaches due to inadequate blood supply to the cerebral vessels. For hypotension, it is often considered that the arterial blood pressure in the adult body circulation is lower than 90/60 mmHg. For this condition, pregnant women can increase nutrition appropriately, and can supplement light salt water or eat a slightly salty diet to increase water intake, more water into the blood can increase blood volume, which can raise blood pressure. In addition, pay attention to each meal should not be too full, because too full will make the return flow of blood to the heart relatively reduced, so that each time the heart ejected blood supply peripheral blood is also relatively reduced, resulting in headaches. You can drink tea appropriately in your life because the caffeine in tea can excite the respiratory center and cardiovascular system, thus raising blood pressure.