1. What is the Due Date Calculator?

The Due Date Calculator estimates the expected delivery date based on the current date and how many weeks pregnant you are. It uses the standard 280-day (40-week) pregnancy duration.

2. How Does the Calculator Work?

The calculator uses the following formula:

Where:

• Current Date — The date of calculation
• Weeks Pregnant — How many weeks into the pregnancy (0-40)
• 280 — Standard days in full pregnancy (40 weeks)

Explanation: The calculation subtracts the elapsed pregnancy time from the standard 280-day pregnancy duration to determine the remaining time until delivery.

3. Importance of Due Date Calculation

Details: Knowing the estimated due date helps in prenatal care planning, monitoring fetal development, and preparing for delivery.

4. Using the Calculator

Tips: Enter the current date and how many weeks pregnant you are (0-40 weeks). For best results, use the date of your last menstrual period as the starting point if known.

5. Frequently Asked Questions (FAQ)

Q1: How accurate is this calculator?
A: This provides a general estimate. Only about 5% of women deliver on their exact due date, with most delivering within 2 weeks before or after.

Q2: What if I know my conception date?
A: For more accuracy, you can calculate from conception date by adding 266 days (38 weeks).

Q3: Why 280 days?
A: This is the standard duration calculated from the first day of the last menstrual period (adding 2 weeks before actual conception).

Q4: What if my cycles aren't regular?
A: This method assumes a 28-day cycle. If your cycles are irregular, an ultrasound measurement may provide a more accurate due date.

Q5: Can the due date change?
A: Yes, healthcare providers may adjust the due date based on ultrasound measurements in early pregnancy.