Hi and welcome to HCM. Ultrasounds have become a regular and very welcome part of prenatal care Early in pregnancy, ultrasounds are used to confirm the fetal heartbeat and a uterine (as opposed to ectopic or tubular) pregnancy. Later, ultrasounds screen for fetal growth, placenta location, and umbilical cord, as well as the baby s general health and anatomy. Ultrasounds can also be useful for checking the length of your cervix, if there is any suspicion that you may be in preterm labor. First ultrasound, also known as a sonogram, will take place when you re around 6 to 8 weeks pregnant. This scan is to determine a more accurate due date and track milestones during your pregnancy. Your doctor will also rule out a tubal (ectopic) pregnancy, which is when the fetus grows in the fallopian tube instead of the uterus. In your case they have done this already. Second scan: All pregnant women are offered a nuchal translucency (NT) test, performed between 11 and 13 weeks, and this involves another ultrasound. The NT evaluates your risk of having a baby with Down syndrome, trisomy 18 (another chromosomal abnormality), or certain heart defects. Third scan: Between 18 and 22 weeks, a detailed anatomy scan called a level 2 ultrasound is necessary, ask for this with your doctor. But most of doctors advice this scan with out fail. It is mainly to detect any gross anomalies in the fetus. For many pregnant women, their last ultrasound takes place at their 20-week anatomy scan. This scan is not for all pregnant women, but for them who fall into high risk group. This your doctor will decide. Regards Dr Santosh