When pregnancy reaches the middle and late stages, it does cause poor breathing, mainly due to the enlargement of the embryo, the uterine body is pushing upwards more and more, which leads to the increase of abdominal pressure. Because in order to breathe deeply, the diaphragm usually makes upward and downward movements, once the abdominal pressure increases, the diaphragm will be subject to great resistance when moving downward. In this case, pregnant women will feel very painless and uncomfortable when breathing, especially when lying down to sleep at night will be particularly serious. In this case, because the pregnancy period is very short, 9 months, as much as possible to do some breathing exercises during the daytime awake to increase the toughness of the diaphragm, once the diaphragm’s toughness is favorable, it will be able to greatly ease the breathlessness. After the breathing exercises are done, during the natural labor, it can be very helpful to have a smooth delivery. Therefore, during pregnancy, especially in the middle and late stages, if you find that your breathing is not smooth, you should do more breathing exercises.