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A member asked:
How reliable are reverse due date calc. on giving information. i didn't have periods(depo) based on u/s at 14w all the dates match what's error margin?
A doctor has provided 1 answer
8 days: At 14-15 weeks, the error margin is plus or minus 8 days. Best wishes!
Answered 8/20/2014
3.8k views
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