Pregnancy symptoms refer to the physical and emotional changes that a woman experiences when she is expecting a baby. These can vary from one woman to another, but some common signs include missed periods, morning sickness, fatigue, breast tenderness or swelling, frequent urination, mood swings, food cravings, and increased sensitivity to certain smells. Some women may also experience symptoms such as headaches, heartburn, constipation, and back pain during pregnancy. It is important for a woman to be aware of these signs so that she can seek medical attention if necessary or take appropriate measures to manage her symptoms.