| As pregnancy progresses, the progesterone levels increase and this directly stimulates your breathing. The size of your womb, pressing on the diaphragm, restricts your ability to take deep breaths. Finally, the extra weight you are carrying means that you use more energy moving around. All these factors stimulate breathing and often make you very short of breath. If this happens, sit down quickly and take deep, slow breaths. If you try to speed up your breathing, you will simply hyperventilate and feel faint. |
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