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EDD Calculation Formula:
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The Baby Due Date Calculator Conception estimates the expected delivery date (EDD) based on the known conception date. It uses the standard calculation of conception date plus 266 days to determine the due date.
The calculator uses the EDD calculation formula:
Where:
Explanation: This calculation assumes a standard 266-day gestation period from conception to delivery, which corresponds to approximately 38 weeks of pregnancy.
Details: Accurate due date calculation is crucial for prenatal care planning, monitoring fetal development, preparing for delivery, and ensuring appropriate medical interventions throughout pregnancy.
Tips: Enter the known conception date in the date field. The calculator will automatically compute the estimated due date by adding 266 days to the conception date.
Q1: Why 266 days from conception?
A: 266 days represents the average gestation period from conception to delivery, which equals approximately 38 weeks of pregnancy.
Q2: How accurate is this calculation?
A: This method is very accurate when the conception date is known precisely. Most pregnancies last between 37-42 weeks from the last menstrual period.
Q3: What if I don't know my exact conception date?
A: If the conception date is unknown, use the last menstrual period (LMP) method by adding 280 days to the first day of your last period.
Q4: Can the due date change during pregnancy?
A: Yes, healthcare providers may adjust the due date based on ultrasound measurements, especially if there's a significant difference from the calculated date.
Q5: What percentage of babies are born on their due date?
A: Only about 5% of babies are born exactly on their due date. Most are born within two weeks before or after the calculated date.