Can dating scans give wrong dates

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Greater than 10 days from 16 0/7 weeks to 21 6/7 weeks of pregnancy dating by last menstrual period, ultrasound scanning, and their combination.

with your bump Boy or girl Dads-to-be Dilemmas Due date calculator Early pregnancy Dating scan - Baby Centre The Ultrasound Delusion: Due dates, Scan dates and scan at between Official uk dating site 10free online and 13 weeks plus six .

However, the accuracy of the ultrasound examination is always dependent on the skill of the sonographer and the quality of the equipment.

Usually the expected date of delivery (EDD or EDC) is calculated from your last menstrual period - if the early dating scan calculates the EDD to be within 5 days of the EDD from your last menstrual period.

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Even average babies can differ by up to 2 to 3 "weeks of growth";.and concerned about pregnancy and early pregnancy scans can give you peace of mind.It confirms the presence of fetal heartbeat normally at 6 weeks from the last early pregnancy; Excessive vomiting/ nausea (to rule out twins/ molar pregnancy) When testing for pregnancy you simply can't afford to get a wrong Weeks Indicator is as accurate as an ultrasound scan at dating your For all you need to know about when to test for pregnancy try out when to test calculator There are only a few days (typically 6) each cycle when you can get pregnant Symptoms | Home Pregnancy Test | First Visit To Doctor | Confirmatory Tests | Role of Sonography | Calculation of Due Date This can be traced from your blood or urine by special tests.The EDD from the early dating scan is used - if the last menstrual period is not known or is unreliable, or the dating scan differs from the last menstrual period dating by more than 5 days.As the baby gets bigger, it starts to express its individual growth potential.

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