Dating scan wrexham
The second scan offered to all pregnant women is called the anomaly scan, or mid-pregnancy scan, and usually takes place between 18 and 21 weeks of pregnancy.
This scan checks for structural abnormalities (anomalies) in the baby.
The scans are completely painless, have no known side effects on mothers or babies, and can be carried out at any stage of pregnancy.
Your choice will be respected if you decide not to have the scans, and your antenatal care will continue as normal.
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.
The sonographer passes a handheld device called a probe over your skin.
It is this probe that sends out ultrasound waves and picks them up when they bounce back.