Patient's question:
I had my period on the 12th day of the lunar calendar. It was around the 19th when it ended. About past treatment and its effectiveness: None. What kind of help do you care about: When will the baby be born?Doctor's answer:
Generally speaking, pregnancy lasts about 280 days, or 40 weeks. The estimated due date is calculated from the first day of the woman's last menstrual period. Add nine or subtract three from the month number, and add seven to the day number. If the expectant mother adds 15 days, it becomes the due date according to the lunar calendar. The estimation of the due date is only an approximation and may vary. Based on the actual condition of the mother, it may differ by about seven days before or after. If the menstrual cycle is usually short, less than a month, the delivery date is likely to be before the due date. If the menstrual cycle is usually long, about 40 days, the delivery date is likely to be after the due date.