Start 12 week dating scan

12 week dating scan

There are two routine scans in pregnancy and the first is called the 12-week scan or “datingscan – this is because one of the things it looks at is the exact gestation, giving a better idea of your baby's estimated due date.

This can be something of an uncomfortable challenge if your sonographer has particularly long waiting times.

For transvaginal ultrasound you can have an empty bladder Dating scans are usually recommended if there is doubt about the validity of the last menstrual period.

For example if you a tiny sac can be seen in the uterus, but the baby and its heart beat may not be detected yet.

When a foetus has Down syndrome they tend to have more fluid at the base of their neck, in the region known as the nuchal fold area.