Due Date & Scan Schedule Calculator Due Date and Scan Schedule Calculator First Day of Last Period: Typical Cycle Length (days): (Optional) What date will it be when I am _ weeks? (Optional) How many weeks will I be on _ date? (Optional) Select Scan Types: Early Reassurance (6 to 14 Weeks) Reassurance (15-23 Weeks) SneakPeek Gender Blood Test (6+ Weeks) Gender Scan (14+ Weeks) Anomaly Scan (18 to 23 Weeks) 4D Scan (24 to 32 Weeks) Growth & Presentation Scan (28 to 40 Weeks) Panorama Test (9+ Weeks) Calculate Due Date and Scan Schedule Results Please note that these results are estimates and may not be exact. They are primarily to be used as a guide help you understand the timing of your pregnancy and assist in booking scans.