My wife got pregnant on September 6th of last year. When will she give birth this year?

Patient's question:

Sure, here is the translation of the content you provided:
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No
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Doctor's answer:

Hello, the method for calculating the estimated due date is to start from the first day of your last menstrual period. Subtract three months or add nine months to the month, and add seven days to the day (add 14 days for the lunar calendar). The resulting date is your estimated due date.

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