It is common for pregnant women to experience breath discomfort, especially in air-conditioned environments. This may be due to hormonal changes, increased blood volume, or the growing uterus putting pressure on the diaphragm. To alleviate this discomfort, try adjusting the temperature or humidity of the room, using a humidifier, practicing deep breathing exercises, maintaining good posture, and avoiding tight clothing. If the breath discomfort persists or worsens, it's advisable to consult your healthcare provider for further evaluation and guidance.