An ultrasound scan is an assessment tool commonly used by doctors during your pregnancy. It is a safe and useful way of obtaining images of your baby and his/her surrounding environment to provide useful information on his/her health.
You will need to go through various scans during your pregnancy which include -
Dating scan (Week 6-12)
Nuchal Translucency Scan (Week 11–14)
Screening Scan (Week 18–22)
Growth Scan (32–36 weeks)
Doppler Scan - not routinely done (only if the fetus is not growing well, in patients with medical conditions such as preeclampsia and also multiple pregnancies)