Are dating scans in pregnancy accurate
Most women deliver the baby somewhere between 37 and 42 weeks.According to the American College of Obstetricians and Gynecologists, only 5% of babies arrive on the exact due date.
An online test cannot give a definite answer (it has no sample of one's blood or urine), so it can only make a guess (hopefully and educated guess). Read more When your due date arrives, you will be more than ready to have your baby!That's the job of your next routine scan at about 20 weeks, when more detail can be seen as your baby grows bigger.However, some major problems can be seen at your dating scan, such as problems with your abdominal wall or with your baby's skull.If you do know the conception date, this is counted as day 14, and not day one.If you have an irregular cycle, or if you've recently been taking the contraceptive pill, working out the date from your LMP isn't a very accurate method. The scan can check that your baby has a heartbeat and is developing normally.