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EDD Calculation Formula:
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The Pregnancy Calculator Conception estimates the due date (EDD) based on the known conception date. It calculates the expected delivery date by adding 266 days to the conception date, which represents the typical gestation period from conception.
The calculator uses the following formula:
Where:
Explanation: This calculation method is used when the exact conception date is known, providing a more accurate due date estimate than calculations based on the last menstrual period.
Details: Accurate due date calculation is crucial for proper prenatal care, monitoring fetal development, planning for delivery, and ensuring the health of both mother and baby 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 entered date.
Q1: Why 266 days instead of 280 days?
A: 280 days is calculated from the last menstrual period (LMP), while 266 days is from conception. Conception typically occurs about 14 days after LMP.
Q2: How accurate is this calculation?
A: When the exact conception date is known, this method provides a highly accurate due date estimate, though individual variations in gestation can occur.
Q3: What if I don't know my conception date?
A: If the conception date is unknown, use a calculator based on the last menstrual period (LMP) which adds 280 days to the LMP date.
Q4: Are there factors that can affect the due date?
A: Yes, factors include maternal age, previous pregnancies, fetal development, and individual variations in gestation length.
Q5: Should I rely solely on this calculation?
A: This calculation should be used as a guide. Always consult with healthcare providers who may adjust the due date based on ultrasound measurements and clinical assessment.