Things to pay special attention to during the fourth month of pregnancy: Nutritional balance. Four months into the pregnancy, the fetus has begun to develop and needs various nutrients to support its growth. Therefore, pregnant women need to pay attention to the balance and diversity of their diet. First, ensure adequate protein, which is an essential nutrient for fetal growth and development. Secondly, adequate calcium and vitamin D intake are necessary so that the fetal bones and teeth can develop normally. In addition, also