An early pregnancy scan is an ultrasound typically performed between 6 and 12 weeks of pregnancy to monitor the development and health of the embryo or fetus. It helps confirm pregnancy, accurately date the pregnancy, detect multiple pregnancies, monitor the baby's heartbeat, and identify any potential complications early on. The scan can be done transabdominally (on the belly) or transvaginally (internal) for clearer images, especially if the pregnancy is less than 8-10 weeks. The scan is safe, usually lasts 15-30 minutes, and can provide reassurance and important information to expectant parents. It is often known as a dating scan or viability scan depending on its purpose.