Early ultrasound due dates have a margin of error of roughly 1. Herbal remedies in pregnancy. These can be carried out from week 5 or 6 of pregnancy, which is a notoriously tricky time to be accurate on dates. What are your concerns? Thanks for your feedback!
We always recommend mums get a definitive dating scan closer to 12 weeks as this will be much more accurate.
Ultrasound Accuracy for Predicting Due Dates
You may also like. You may have simply conceived earlier or later than you thought you did which can happen if your cycle is at all irregular or if you remembered your last menstrual period date incorrectly. Thank you,for signing up. Your week scan will be far more accurate. Just half a millimetre at such an early stage can change your date by a week. By Rachel Mostyn. 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.