A member asked:

I have irregular cycle first ultrasound showed edd oct 3. doc adjusted it to oct 7 and later to sep 23. i m confuse. roughly 6.5 months now pls help?

A doctor has provided 1 answer

Ultrasound Dates: I'm a little confused as well. Early ultrasounds are much more accurate for dating. The farther along you get the ultrasound will have an error rate in the dates from plus or minus 10 to 14 days or more. It would be very unusual to change dates like this, but I would check with your doctor for further clarification.

Answered 7/10/2014

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Thank

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