Special needs dating programme
The sonographer will put ultrasound gel on your tummy and tuck tissue paper around your clothing to protect it from the gel.
The gel makes sure there is good contact between the machine and your skin.
The dating scan and anomaly scan are offered to all women, but you don't have to accept them.
Your choice will be respected if you decide not to have the scans, and your antenatal care will continue as normal.
For example, you may be offered further tests that have a risk of miscarriage.
The first scan is sometimes called the dating scan.
You'll be given the chance to discuss it with your maternity team before making your decision. Ultrasound scans can sometimes find problems with the baby.
You may like someone to come with you to the scan appointment.
for more information on what may happen if a scan or other screening test suggests an abnormality.
A black and white picture of the baby will appear on the ultrasound screen.
During the examination, sonographers need to keep the screen in a position that gives them a good view of the baby – either directly facing them or at an angle.
There are no known risks to the baby or the mother from having an ultrasound scan, but it is important that you consider carefully whether to have the scan or not.
The scan can provide information that may mean you have to make further important decisions.
If you are overweight or your body tissue is dense, sometimes this can reduce the quality of the image because there is more tissue for the ultrasound waves to get through before they reach the baby.