1. What Is Date Of Gestation Calculator?

The Date Of Gestation Calculator calculates pregnancy duration and estimated due date based on the Last Menstrual Period (LMP). It helps track pregnancy progress and plan for delivery.

2. How Does The Calculator Work?

The calculator uses standard obstetric calculations:

Where:

• LMP — Last Menstrual Period date
• Gestation Start — Same as LMP date
• Estimated Due Date — LMP + 280 days
• Current Gestation — Calculated from LMP to current date

Explanation: The calculation follows Naegele's rule, adding 280 days (40 weeks) to the first day of the last menstrual period to estimate the due date.

3. Importance Of Gestation Calculation

Details: Accurate gestation dating is crucial for monitoring fetal development, scheduling prenatal tests, determining delivery timing, and identifying potential pregnancy complications.

4. Using The Calculator

Tips: Enter the first day of your last menstrual period in the date field. Ensure the date is accurate for reliable results. The calculator will provide gestation start date, estimated due date, and current pregnancy duration.

5. Frequently Asked Questions (FAQ)

Q1: What if I don't know my exact LMP?
A: If unsure about LMP, an ultrasound in early pregnancy can provide more accurate dating, especially for dating the pregnancy.

Q2: How accurate is the estimated due date?
A: The estimated due date is approximate. Only about 5% of women deliver exactly on their due date, with most delivering within 2 weeks before or after.

Q3: What is considered full term?
A: Full term is between 39 weeks 0 days and 40 weeks 6 days. Early term is 37 weeks 0 days through 38 weeks 6 days.

Q4: How does this differ from conception date?
A: Gestational age is calculated from LMP, which is typically about 2 weeks before actual conception occurs.

Q5: When should I see a healthcare provider?
A: Schedule your first prenatal visit as soon as you suspect pregnancy, typically around 8 weeks gestation for initial assessment and confirmation.