If your baby's progress in sonography is 1 week late, it is important to consult with your healthcare provider for further evaluation and guidance. They will assess the situation and determine if any additional tests or interventions are necessary. It is possible that the delay could be due to various factors such as inaccurate dating, variations in fetal growth patterns, or potential complications. Your healthcare provider will be able to provide you with personalized advice based on your specific circumstances. Remember to discuss any concerns or questions you may have with them openly and honestly.