Shoulder pain is not a common symptom in early pregnancy, but it can occur in some cases. It is usually not caused by the pregnancy itself but rather by other factors such as muscle strain, poor posture or tension. However, in rare cases, it can be a symptom of an ectopic pregnancy. If you experience shoulder pain in early pregnancy, it is always best to consult with your healthcare provider to rule out any serious conditions and to make sure it is not related to ectopic pregnancy.