Patient's question:
The last menstrual period was on June 29, 2005. I would like to ask when the due date is. If I take a long-distance train trip around the due date (approximately 20 hours), will it cause premature labor? Under what circumstances is premature labor more likely to occur?Doctor's answer:
Due date is calculated based on the first day of your last menstrual period. Subtract 3 from the month of your last menstrual period or add 9, and add 7 to the date to get the due date. If your last menstrual period was on June 29th, then your due date would be around April 6th of next year.