You won’t have known that you’re pregnant long, but your 12 week dating scan offers an exciting opportunity to see your little one developing in the womb and give you an idea of your estimated due date (EDD).
You should have your first pregnancy ultrasound scan in between 10 weeks and 13 weeks pregnant, but it can vary on a couple of other factors including where you live and how you’ve been up to the 12th week of pregnancy.
In early pregnancy, the measurement from the top of the fetal head to the bottom of the pelvis is called the “Crown-Rump” length.
Before twelve weeks, it’s difficult to measure much more. In the second trimester, (past the first 12 weeks), the other measurements can be added.
The process will involve lying back on a bed, with gel applied to your belly.