Dating scan put me forward a week

Is it normal for scan dates to be different?

Understandably, when it is such early days it’s easy to worry when the scan dates are different to what you were expecting. As Loobylou77 explains, it’s really common for these to change when it comes to the dating scan at around 12 weeks.

Can the date of a scan change at 12 weeks?

As Loobylou77 explains, it’s really common for these to change when it comes to the dating scan at around 12 weeks. “I was measured at 6+6 (6 weeks and 6 days) when I should have been 8 weeks. Measurements at such an early stage aren’t accurate which is why they wait for 12 weeks to date you.

When is the best time to have a scan?

These can be carried out from week 5 or 6 of pregnancy, which is a notoriously tricky time to be accurate on dates. Understandably, when it is such early days it’s easy to worry when the scan dates are different to what you were expecting.

How accurate is the 11 week scan date?

The best time to establish this date is at the scan you are offered between 11 weeks and 2 days and 14 weeks plus 1 day,” Just how accurate (or not) can the dating scan be? Experts say that the scan date can sometimes come out as less pregnant than suggested by your LMP. This was the case for HowieMumma.

How common is it to change the date of a scan?

As Loobylou77 explains, it’s really common for these to change when it comes to the dating scan at around 12 weeks. “I was measured at 6+6 (6 weeks and 6 days) when I should have been 8 weeks.

When is the best time to have a scan?

These can be carried out from week 5 or 6 of pregnancy, which is a notoriously tricky time to be accurate on dates. Understandably, when it is such early days it’s easy to worry when the scan dates are different to what you were expecting.

How accurate are dates from early scans?

“Definitely agree that dates from early scans are not accurate. Just half a millimetre at such an early stage can change your date by a week. Your 12-week scan will be far more accurate. “I fell over at ‘7’ weeks by my last menstrual period (EDD 18 March) and was sent for an early scan.

Can your due date be wrong from a scan?

Despite the fact that sonographers are experts in their field, estimated due dates (EDD) calculated from pregnancy scans can be incorrect, as Ollysmum76 discovered. “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.

How accurate are early scans at 12 weeks?

Early scans can be out by 5 days or so but I thought by 12 weeks they were regarded as fairly accurate. 3 weeks is a big difference! I dont think they would be that far out. Perhaps you ovulated twice that month? I was sent to EPU as was being very sick. By my dates I was 7 weeks, by theirs I was 6 weeks.

How accurate is a scan date?

A scan date is normally spot on although if theres a few days difference between the scan date and your date they will go with your dates. I think mine was spot on, 12 weeks 2 days was actually 11w6d which I agreed with but they are not infallible. Doesnt really make any difference as my daughter was 3 weeks early.

When is the best time to have a scan for pregnancy?

The best time to establish this date is at the scan you are offered between 11 weeks and 2 days and 14 weeks plus 1 day,” Just how accurate (or not) can the dating scan be?

What SCAN week do they use for dating?

Its definitely the 12 scan week for dating. I was put back a week in each of my pregnancies but they will only use the dates from the scan anyway, the 20 week scan is for anomalies.