It is possible that the symptoms you are experiencing could be early signs of pregnancy. Cramping on one side, known as implantation cramping, can occur when the fertilized egg attaches to the uterine lining. Nausea and breast pain are also common early pregnancy symptoms due to hormonal changes. However, it's important to note that these symptoms can also be caused by other factors such as hormonal fluctuations or premenstrual syndrome (PMS). The only way to confirm pregnancy is by taking a home pregnancy test or consulting with a healthcare professional for a blood test. Keep monitoring your symptoms and consider taking a test if your period is late. Remember that every woman's experience is different, so it's best to consult with a healthcare professional for personalized advice.