The estimated date of delivery, also known as the due date, is typically calculated based on the first day of your last menstrual period (LMP) and the average length of a menstrual cycle. Here's a simple method to estimate the due date: • Start with the first day of your last menstrual period (LMP). • Add 280 days (approximately 9 months and 7 days) to the LMP. • Adjust for the length of your typical menstrual cycle: • If your cycle is typically 28 days, you can leave the calculated due date as