But there is a lot more to them than getting some exciting pictures…
Ultrasound was originally developed during WWII to detect enemy submarines, and was then subsequently used in the steel industry before being adapted for use in the medical arena.
Some people want to find out if there are any problems or concerns within the pregnancy so they can be prepared and have more options; others feel that the result won’t change how they feel or their choice of actions, so they don’t need to know and therefore don’t need the test.
Your first scan is likely to be between 10 and 14 weeks of pregnancy.
You should have had information about the scan from your doctor or midwife so if you haven’t, ask them for a leaflet.
At this first scan, you can ask for a picture of the baby to be taken during the scan, but be prepared to pay a small fee as most hospitals charge for this.
An average length of the embryo at 7 weeks is anywhere between 5mm-12mm. Obviously, every pregnancy is unique and individual factors influence the size of the embryo at this early stage, and the embryo shows development week by week.
Crown/rump length and gestational age are closely compared with each other until around the end of the first trimester.