1. Signs of three months of pregnancy Three months of pregnancy is when pregnant women enter the second trimester. At this time, the fetus has developed and formed, and various organs have begun to gradually mature. At this stage, the pregnant woman\’s body undergoes some obvious changes. , the breasts begin to enlarge and the nipples become more sensitive. Some pregnant women may experience reactions such as nausea and vomiting, and may also experience symptoms such as backache and frequent urination. Additionally, pregnant women may experience mild abdominal discomfort due to the gradual enlargement. 2. Precautions Three months of pregnancy is a critical period. At this stage, special attention should be paid to the following points: 1.