Thanks so much for your post — we always welcome feedback, positive or negative, as we always aim to make our articles as accurate and as helpful as possible. Information on pregnancy ultrasound scans including when they are taken, what it can be used for, dating scans, anomaly scans, plus links to trusted resources. Then at the week scan I got an EDD of 15 march, so that early scan was completely out. Check with your ultrasound clinic for any preparation you need to do prior to the scan. Enter Now View All Competitions.