1. What is Pregnancy Calculator Perinatology?

The Pregnancy Calculator Perinatology estimates the due date (EDD) from the last menstrual period (LMP) using the standard 280-day pregnancy duration. This calculation is essential for prenatal care and pregnancy monitoring.

2. How Does the Calculator Work?

The calculator uses the pregnancy calculation formula:

Where:

• \( EDD \) — Estimated Due Date
• \( LMP \) — Last Menstrual Period
• \( 280 \) — Standard pregnancy duration in days

Explanation: The calculation assumes a 40-week pregnancy duration from the first day of the last menstrual period, which is the standard method used in obstetrics.

3. Importance of EDD Calculation

Details: Accurate due date estimation is crucial for proper prenatal care, monitoring fetal development, scheduling important tests, and preparing for delivery.

4. Using the Calculator

Tips: Enter the first day of your last menstrual period in the date field. The calculator will automatically compute your estimated due date based on the standard 280-day pregnancy duration.

5. Frequently Asked Questions (FAQ)

Q1: How accurate is this calculation method?
A: The LMP + 280 days method is the standard clinical approach, though ultrasound dating in the first trimester is more accurate.

Q2: What if my cycle is irregular?
A: For women with irregular cycles, ultrasound dating in the first trimester provides a more accurate due date estimation.

Q3: Why 280 days instead of 9 months?
A: 280 days equals 40 weeks, which is the standard medical calculation for pregnancy duration from LMP.

Q4: When should I confirm with healthcare provider?
A: Always confirm your due date with your healthcare provider, who may adjust it based on ultrasound measurements.

Q5: What percentage of babies are born on their due date?
A: Only about 5% of babies are born exactly on their due date, with most births occurring within two weeks before or after.