The timing of scans during pregnancy can vary depending on various factors. However, the most common and recommended time for a scan is around 18-20 weeks. This is known as the anatomy scan and it provides detailed information about your baby's growth and development. It allows healthcare professionals to check for any abnormalities or potential issues. Additionally, earlier scans may be done in the first trimester to confirm the pregnancy, estimate due date, and assess overall health. These early scans are usually performed between 6-12 weeks. It's important to consult with your healthcare provider who will determine the best timing for your specific situation based on factors such as medical history, risk factors, and individual needs.