How accurate are dating scans
However, some major problems can be seen at your dating scan, such as problems with your abdominal wall or with your baby's skull.You may need a second scan to check the first scan's findings.Having a scan in the first few months of pregnancy can be a thrilling experience.It's amazing to see the little blob with a heartbeat that will soon become your baby.You may have calculated the length of your pregnancy from the first day of your last menstrual period (LMP).This is even though you don't actually conceive until 14 days after your LMP, or later than this if your cycle is longer than 28 days.
If you do know the conception date, this is counted as day 14, and not day one.If your uterus (womb) is very deep in your pelvis, or if you're overweight, you may be offered a vaginal scan, which can get nearer to your baby.It shouldn't be uncomfortable, and you don't need a full bladder.Your midwife may recommend an early scan at between six weeks and 10 weeks if you have experienced bleeding.You may also be offered an early scan if you've had a previous miscarriage.
Search for how accurate are dating scans:
Nearly all scans after 10 weeks can be done through your tummy, and most units ask you to come with a full bladder.