Expectant mums will usually get two scans during their pregnancy, but some opt to have a 4D scan as well during the nine months. So what is a 4D scan, what are they like and why do couples get them?

The 12-week scan is arguably one of the most exciting and nerve-wracking parts of early pregnancy. You get to see your baby for the first time (unless you’ve had an earlier scan) and will finally get ...