1. What is the Due Date Calculation?

The due date calculation estimates the expected delivery date based on the conception date. Using the formula EDD = CPD + 266, it calculates the estimated due date by adding 266 days to the known conception date.

2. How Does the Calculator Work?

The calculator uses the due date calculation formula:

Where:

• \( EDD \) — Estimated Due Date
• \( CPD \) — Conception Date
• \( 266 \) — Standard gestation period in days from conception

Explanation: This calculation assumes a standard pregnancy duration of 266 days from conception to delivery, which is approximately 38 weeks of gestation.

3. Importance of Due Date Calculation

Details: Accurate due date calculation is essential for proper prenatal care, monitoring fetal development, planning for delivery, and ensuring both maternal and fetal health throughout pregnancy.

4. Using the Calculator

Tips: Enter the known conception date in the date field. The calculator will automatically compute and display the estimated due date 266 days later.

5. Frequently Asked Questions (FAQ)

Q1: Why 266 days specifically?
A: 266 days represents the average gestation period from conception to delivery, which is approximately 38 weeks or 9 months.

Q2: How accurate is this calculation?
A: This provides an estimate. Actual delivery dates can vary by ±2 weeks from the calculated due date.

Q3: What if I know my last menstrual period instead?
A: If using last menstrual period, add 280 days (40 weeks) instead of 266 days for the estimated due date.

Q4: Are there factors that can affect the due date?
A: Yes, factors include maternal health, fetal development, multiple pregnancies, and individual variations in gestation period.

Q5: Should I rely solely on this calculation?
A: This tool provides an estimate. Always consult with healthcare providers for accurate pregnancy dating and prenatal care.