How accurate is the edd calculator?

Hi Mummies, may I know how accurate is the edd calculator based on the first day or your last period? Am trying to avoid certain date. Thanks

Vô danh

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Quite accurate. If I remembered correctly, 1st day of your last period.

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Vô danh

3y trước

u go for scan. doc will tell u edd. based on ur baby size.