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EDD Calculation Formula:
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The EDD (Estimated Due Date) Calculator calculates how many weeks remain until your estimated due date based on current pregnancy weeks. It helps track pregnancy progress and anticipate delivery timing.
The calculator uses the EDD calculation formula:
Where:
Explanation: The calculation subtracts current pregnancy weeks from the standard 40-week pregnancy duration to determine remaining weeks until due date.
Details: Accurate EDD calculation is essential for prenatal care planning, monitoring fetal development milestones, and preparing for delivery. It helps healthcare providers schedule important tests and screenings at appropriate times.
Tips: Enter current pregnancy weeks (0-40 weeks). The value must be between 0 and 40 weeks. Use decimal values for partial weeks (e.g., 12.5 for 12 weeks and 3-4 days).
Q1: Why is 40 weeks used as the standard pregnancy duration?
A: 40 weeks is the medically accepted standard for full-term pregnancy, calculated from the first day of the last menstrual period (LMP).
Q2: What if my pregnancy goes beyond 40 weeks?
A: Many pregnancies naturally extend to 41-42 weeks. This calculator provides an estimate based on the standard 40-week model.
Q3: How accurate is this calculation?
A: This provides a general estimate. Actual due dates may vary based on individual factors, ultrasound measurements, and menstrual cycle regularity.
Q4: Should I use LMP or conception date for calculation?
A: This calculator assumes standard LMP-based calculation. For conception-based dating, consult with your healthcare provider.
Q5: Can this calculator be used for IVF pregnancies?
A: For IVF pregnancies, due dates are typically calculated from embryo transfer date. Consult your fertility specialist for accurate dating.