1. What is the EDD Calculator?

The EDD (Estimated Due Date) Calculator estimates the expected delivery date based on the current gestational age. It uses the standard calculation method recommended by obstetric guidelines.

2. How Does the Calculator Work?

The calculator uses the following formula:

Where:

• Current Date — The date of calculation
• Gestational Age — Current pregnancy duration in weeks
• 40 — Standard full-term pregnancy duration in weeks
• 7 — Days per week conversion factor

Explanation: The calculation determines how many weeks remain until the 40-week mark and converts this to days to add to the current date.

3. Importance of EDD Calculation

Details: Accurate EDD estimation is crucial for prenatal care planning, monitoring fetal development, and determining the optimal timing for delivery.

4. Using the Calculator

Tips: Enter the current date and accurate gestational age in weeks (1-42). The gestational age should be based on the first day of the last menstrual period or early ultrasound dating.

5. Frequently Asked Questions (FAQ)

Q1: How accurate is this EDD calculation?
A: This method provides a standard estimate, but individual variations occur. Early ultrasound dating (first trimester) is more accurate.

Q2: What if I don't know my exact gestational age?
A: Consult your healthcare provider for an accurate assessment, preferably with first-trimester ultrasound measurements.

Q3: Why 40 weeks as the standard pregnancy duration?
A: 40 weeks is the medically accepted duration from the first day of the last menstrual period to delivery for a full-term pregnancy.

Q4: What percentage of babies are born exactly on their EDD?
A: Only about 5% of women deliver on their exact EDD. Most deliver within 2 weeks before or after.

Q5: Does this calculator account for leap years?
A: Yes, the date calculation automatically accounts for leap years and varying month lengths.