1. What are the symptoms of one week pregnancy? 2. Physical changes 1. Breast changes 2. Menstrual cycle changes 3. Emotional changes 1. Anxiety 2. Mood swings 4. Dietary changes What are the symptoms of one week of pregnancy? A week into pregnancy, when the embryo has just implanted, a woman\’s hormonal levels begin to change, and these changes may cause some mild physical and emotional symptoms. These symptoms may persist into late pregnancy but may disappear within a few days or weeks. Body changes 1. Breast changes During the first week of pregnancy, many women will feel a difference in their breasts. Breasts may feel more sensitive or tight