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EDD Conceived Date Formula:
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The EDD (Estimated Due Date) calculation from conceived date estimates the expected delivery date by adding 266 days to the known conception date. This method provides an accurate due date when the exact conception date is known.
The calculator uses the simple formula:
Explanation: This calculation is based on the typical 38-week (266-day) gestation period from conception to delivery, which is more accurate than the traditional 40-week calculation from the last menstrual period.
Details: Accurate due date calculation is crucial for prenatal care planning, monitoring fetal development, scheduling important tests, and preparing for delivery. It helps healthcare providers track pregnancy progress and identify potential complications.
Tips: Enter the exact conceived date in the date picker. The calculator will automatically compute and display the estimated due date 266 days later.
Q1: Why 266 days instead of 280 days?
A: 280 days is calculated from the last menstrual period (LMP), while 266 days is from the actual conception date. Pregnancy is typically 38 weeks from conception or 40 weeks from LMP.
Q2: How accurate is this calculation?
A: When the exact conception date is known, this method is very accurate. However, only about 5% of babies are born exactly on their due date.
Q3: What if I don't know my exact conception date?
A: If the conception date is unknown, use the last menstrual period method (LMP + 280 days) or consult with your healthcare provider for ultrasound dating.
Q4: Can the due date change during pregnancy?
A: Yes, healthcare providers may adjust the due date based on early ultrasound measurements, which are most accurate in the first trimester.
Q5: What factors can affect the actual delivery date?
A: Many factors including maternal health, fetal development, multiple pregnancies, and individual variations can influence the actual delivery timing.