This problem is not due to pregnancy, if the total exhaust, we should start from the following aspects to find the cause: First, observe whether the recent consumption of food that is more likely to cause exhaust, such food usually have legumes, such as peas, soybeans, etc., vegetable food, such as celery, cabbage, radish, etc., and fruit, such as grapefruit this type of food into the body is more likely to produce gas and lead to exhaust Second, when eating more talk or drink drinks, juice, porridge, etc. with a straw, will make the gas with the food into the digestive tract, this situation will also lead to exhaust; Third, the gastrointestinal tract if there is inflammation or other diseases, causing the gastrointestinal tract slow peristalsis, food for a long time to stay will react and produce gas.