After pregnancy, because of the secretion of hormones in the body, causing gastrointestinal discomfort, including increased acid reflux in the stomach, salivary glands secretion, etc., may lead to sour mouth after eating, belongs to the normal early pregnancy reaction, do not need to worry too much. It is better to pay attention to drink more water, eat more vegetables and fruits, usually pay attention to oral hygiene and eat less sweets, which can alleviate this situation. After pregnancy, it is easy to lose appetite, it is better to eat more apples, oranges, dragon fruit, etc., which can supplement vitamin C and enhance appetite during pregnancy. Pay attention not to eat spicy and stimulating food during pregnancy, avoid greasy food, it is recommended to have a diversified diet and eat less and more meals, which can replenish the nutrition needed during pregnancy and help the baby develop.