1. What are the signs of pregnancy in the first few days? The signs of pregnancy in the first few days are very subtle. Some women will notice some unusual changes, but many women will not notice anything different. Here are some signs that may appear in the first few days of pregnancy: 1. Breast tenderness: Breast tenderness is one of the most common signs in early pregnancy. When the fertilized egg implants, hormone levels in the body begin to rise, which may cause breast swelling, sensitivity, or pain. 2. Ovulation period: Ovulation usually occurs in the middle of the menstrual cycle. During this period, women may feel a slight swelling in the abdomen.