1. What is Pregnancy Due Date Calculation?

The pregnancy due date calculator estimates the expected delivery date based on the first day of your last menstrual period (LMP) and calculates your current pregnancy progress in weeks and days.

2. How Does the Calculator Work?

The calculator uses the standard pregnancy calculation:

Where:

• LMP — First day of last menstrual period
• 280 days — Standard length of pregnancy (40 weeks)
• Current Date — Date for progress calculation

Explanation: The calculation assumes a regular 28-day menstrual cycle with ovulation occurring on day 14.

3. Importance of Due Date Calculation

Details: Knowing your estimated due date helps monitor pregnancy progress, schedule prenatal care, and identify potential complications if delivery occurs significantly before or after the estimated date.

4. Using the Calculator

Tips: Enter the first day of your last menstrual period and the current date for calculation. The calculator will show your estimated due date and current pregnancy progress.

5. Frequently Asked Questions (FAQ)

Q1: How accurate is this due date calculation?
A: The calculation is accurate for women with regular 28-day cycles. Ultrasound dating in early pregnancy may provide a more accurate estimate.

Q2: What if my cycles aren't 28 days?
A: Women with longer or irregular cycles may need adjustment. Consult your healthcare provider for a more personalized estimate.

Q3: What percentage of babies are born on their due date?
A: Only about 5% of babies are born on their exact due date. Most are born within 2 weeks before or after.

Q4: Can the due date change?
A: Yes, early ultrasound measurements may lead to adjustments in the estimated due date.

Q5: What's considered full term?
A: Between 37 weeks and 41 weeks 6 days is considered full term. Babies born before 37 weeks are preterm.