Patient's question:
I had my last menstrual period on May 25th, and I didn't have one in June. When I went to the hospital for a check-up, they said I was pregnant. How is the due date calculated?Doctor's answer:
Hello, the estimated due date is usually calculated from the first day of the last menstrual period. Add 9 months or subtract 3 months, and add 7 days to get the due date. Specifically for you, it should be March 1st. Because 257 is 32, so 5-3 needs to be extended by one month to become March.