I had an ultrasound about 2 weeks ago and have my nuchal one next week. It sounds like it may have just been a little too early to do the NT ultrasound :) I did mine around 12 weeks. Many but not all fetuses with Down syndrome have one or more so-called 'markers' on ultrasound. I turned down all chromosomal tests. She will also calculate the baby’s gestational age based on these measurements and predict a due date. As long as your sonographer assures you that the baby’s growth, development, and heartbeat are normal, you need not worry. I had my first ultrasound at 10 weeks just to check everything/date! The American College of Obstetricians & Gynecologists, … Did you find out from an ultrasound or from the blood test, Your Guide to the First Trimester of Pregnancy, Your Guide to the Second Trimester of Pregnancy, First time to have amniocentesis, I am scared. But you don’t have to worry – the vaginal probe is also not painful. It is usually bulged to accommodate the growing brain. Just so you know, What to Expect may make commissions on shopping links on this page. In some cases, the scan may be done vaginally if the abdominal scan fails to produce clear images. I was told that the NT measurement is actually much more accurate than the blood test which tests for PAPP-A levels, which is where you get your false positives from. Ultrasound is just a screening test and cannot diagnose Down syndrome or other chromosome abnormalities. In addition to his current work, Dr. Amos is using his vast experience to launch Obie, a science-based app that offers personalized fertility advice. The doctor will conduct an ultrasound to check if the spine is developing normally. Thus your doctor will be able to gauge whether all the organs are developing normally and functioning properly or not. I'd also ask them to do the blood screening test to give you some extra peace of mind as well. About 1 in 700 babies born in New South Wales will have Down syndrome. Chances are your little one might be sleeping in the womb. However, they are seen more frequently in fetuses with an abnormality. She will then apply some gel over your belly and press a wand called a transducer on the skin. Hang in there & good luck! The educational health content on What To Expect is reviewed by our medical review board and team of experts to be up-to-date and in line with the latest evidence-based medical information and accepted health guidelines, including the medically reviewed What to Expect books by Heidi Murkoff. ; WhatToExpect.com, Down Syndrome, March 2015. Some parents may choose to get a printed picture of the scan to preserve as a memento. I wouldn't worry about it at all!