1. Essential knowledge for pregnant women. During pregnancy, expectant mothers need to know some basic pregnancy knowledge, including pregnancy cycle, embryo development, diet and nutrition, exercise, etc. In addition, you also need to understand some common pregnancy symptoms and treatment methods, such as nausea and vomiting, breast tenderness, etc. 2. Dietary and Nutritional Guidelines During pregnancy, expectant mothers need to pay attention to a balanced diet and nutrition. should be more