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12 week dating scan

The most accurate time to date you pregnancy is after 8 weeks through to 13 weeks.

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We will also check for the presence of uterine fibroids or ovarian cysts.A scan at 12 weeks could get the date wrong seven days either way and a scan done at 20 weeks could get the date wrong up to ten days either way.The senior member of staff walked in, didn't ask us any questions, how far along we were, any kind of past history, or anything like this, didn't even look at the notes, put the scanner on and kind of after scanning around for a bit, took the scanner off and started saying, 'Well, why have you come this early?' And it was like, 'Well, what do you mean, why have we come this early?' And she said, 'Well, why have you come this early?A simple formula is to take the first day of the menstrual period, subtract three months and add one week.

For instance, if your period starts on the 5th April, then your estimated due date for delivery is the 12th January.

The dating scan is an ultrasound scan that can be done as early as six weeks after the last period, but the dating scan will be most accurate when done between 8 and 12 weeks gestation.

At this time, the fetus is a little larger and easier to measure.

Perhaps you are uncertain of your dates or simply cannot wait until your NHS 12 week scan.

Whatever the reason, an early dating scan can give you peace of mind that all is well with your pregnancy and also ensure that you don’t miss out on the early first trimester screening tests that are available.

' And, as I say, 'Well, because you sent us a, the date through to come, you know.