During the initial stages of pregnancy, which falls between 6-10 weeks, a viability scan is performed. This medical examination makes use of ultrasound technology to determine the existence of an intrauterine pregnancy and identify if it is a single or multiple pregnancy. Additionally, the estimated due date is calculated by measuring the fetus during this scan. To ensure comprehensive care, this scan can be preceded by the DatingUltrasound Scan (12-18 Weeks).