It involves a blood test and measuring the fluid at the back of the babys neck (nuchal translucency) with an ultrasound scan. This is sometimes called a nuchal translucency scan. The nuchal translucency measurement can be taken during the dating scan.

What happens after dating scan?

Once you have been given your expected due date at your dating scan, the next scan will be the 12-14 week scan. This scan will allow you to see your babys developing organs. At the 20 week scan your babys organs will be fully formed and you will get to see just how big they have grown between scans!