Dating pregnancy by ultrasound Family spanking chat
“My due date got put back by 2 weeks at the 12 week scan.
Original date given was 18 December but at the scan it was moved to 31 Dec.
This is where you discover that your due date isn't based on the date you conceived, it's actually calculated from when your last menstrual period started (your LMP). It's because it gives a definite date for health professionals to work with.“All the dates I was given were wrong up until my 12 week scan - which gave my EDD as one day before the date I had calculated myself!” Expert Jan Steward, who is director of Ultrasound Direct and Babybond, agrees that early scans carry a much greater risk of inaccuracy.It just doesn't quite add up by my reckoning of when I think I ovulated and when I know we did the deed!” "I had an early scan at 8 weeks, which put me back a week," adds Abnormal Kitty.
The sonographer then said that I was only about 4.5 weeks [EDD 2 April].