1. What is Gestational Age?

Gestational age is a measure of the age of a pregnancy from the woman's last menstrual period (LMP), normally expressed in weeks. It helps track fetal development and schedule important prenatal tests.

2. How Does the Calculator Work?

The calculator uses the standard gestational age formula:

Where:

• Current Date — Today's date or any reference date
• LMP — First day of the last menstrual period
• 7 — Number of days in a week

Explanation: The calculation counts the number of days since LMP and converts it to weeks by dividing by 7.

3. Importance of Gestational Age Calculation

Details: Accurate gestational age determination is crucial for prenatal care, timing of tests, monitoring fetal growth, and determining due dates.

4. Using the Calculator

Tips: Enter the first day of your last menstrual period and the current date (or any reference date). The calculator will determine how many weeks pregnant you are.

5. Frequently Asked Questions (FAQ)

Q1: What if I don't know my LMP?
A: An ultrasound can estimate gestational age if LMP is unknown or cycles are irregular.

Q2: How accurate is this calculation?
A: It's accurate for women with regular 28-day cycles. Irregular cycles may require adjustment.

Q3: What's the difference between gestational age and fetal age?
A: Gestational age is about 2 weeks more than fetal (conception) age, as it counts from LMP rather than conception.

Q4: When does gestational age start?
A: It starts on the first day of your last menstrual period, before conception occurs.

Q5: What if my cycle isn't 28 days?
A: The calculation may need adjustment - consult your healthcare provider for personalized assessment.