4D Baby Scan – What You Can Expect? In the event that you ask any parent about the most exciting instant of pregnancy, a lot of them will reply – the initial ultrasound of their baby. This is actually the right time when many soon-to-be parents will start to feel a real connection with their baby. Fortunately, there are 4D pregnancy ultrasound scans available these full days. They follow an extremely similar theory to the 2D scan, except that, you get a nice 3d photograph rather than the ‘flat’ image from the normal 2D scan. This permits you to start to see the features of your unborn child a lot more clearly, in fact it is often difficult to assume that the baby hasn’t in fact been born yet.