Experiencing stomach cramps during the first trimester of pregnancy is relatively common and can have various causes. While some cramping can be normal, it's important to pay attention to the intensity, duration, and accompanying symptoms. Mild cramping without any other concerning symptoms is usually nothing to worry about and may be due to your uterus stretching and growing. However, if the pain is severe, persistent, or accompanied by heavy bleeding or other worrisome symptoms, it's crucial to contact your healthcare provider immediately as it could indicate a potential complication such as an ectopic pregnancy or miscarriage. It's always better to err on the side of caution and seek medical advice whenever you have concerns during pregnancy.