Go with your earlier scan as they are supposed to be more accurate, then again your nuchal and dating scan are within a week of each other for edd so I'd figure somewhere close to then. Sign In Sign Up. With all 3 of mine, the 12 week scan has been the most accurate, but with your first you are almost garanteed to go overdue! I was told the earlier the scan the more accurate it is. At around 12 weeks you can get more accurate measurements.
This is especially true if you have an irregular cycle or have been on the Pill for example.
Can your pregnancy scan give the wrong due date?
Win a Paperscapes book bundle! MFM mums share their stories plus expert sonographers explain why it happens and what to do if you're told your due dates are wrong. Pink, Carey Hart and children - family facts. Measurements at such an early stage aren't accurate which is why they wait for 12 weeks to date you. I would love to know if anyone else has experienced this, and which due date turned out to be the correct one? I am 2 weeks off having my 30 Week scan and am rather interested to find out what due date it will give. Hi Ladies, I am 28 Weeks pregnant with my first baby and would like to know of your experiences.