Lower belly pain can be a common symptom during early pregnancy. It is often caused by the stretching and expansion of the uterus as it prepares for the growing fetus. However, it is important to note that there can be other possible causes for lower belly pain as well, such as gas, constipation, or even menstrual cramps. If you suspect you may be pregnant, it is recommended to take a home pregnancy test or consult with your healthcare provider for further evaluation and guidance. They will be able to provide you with an accurate diagnosis and appropriate advice based on your specific situation.