Perinatology Pregnancy Calculator

Perinatology Weeks Calculation:

\[ \text{Perinatology Weeks} = \left\lfloor \frac{\text{Current Date} - \text{LMP}}{7} \right\rfloor \]

Perinatology Weeks:

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1. What is Perinatology Pregnancy Calculator?

The Perinatology Pregnancy Calculator calculates gestational age in weeks based on the last menstrual period (LMP) and current date. This calculation is essential for monitoring fetal development and determining important pregnancy milestones.

2. How Does the Calculator Work?

The calculator uses the perinatology weeks formula:

\[ \text{Perinatology Weeks} = \left\lfloor \frac{\text{Current Date} - \text{LMP}}{7} \right\rfloor \]

Where:

\( \text{Current Date} \) — The date of calculation
\( \text{LMP} \) — Last menstrual period date
\( \left\lfloor \right\rfloor \) — Floor function (rounds down to nearest integer)

Explanation: The calculation determines the number of complete weeks that have passed since the last menstrual period, providing the current gestational age.

3. Importance of Perinatology Weeks Calculation

Details: Accurate gestational age calculation is crucial for prenatal care, fetal growth monitoring, scheduling screenings and tests, and determining expected delivery date.

4. Using the Calculator

Tips: Enter the current date and the first day of your last menstrual period. Ensure dates are entered in the correct format (YYYY-MM-DD) and that LMP date is before current date.

5. Frequently Asked Questions (FAQ)

Q1: What is the difference between gestational age and fetal age?
A: Gestational age is calculated from LMP, while fetal age is calculated from conception. Gestational age is typically about 2 weeks longer than fetal age.

Q2: How accurate is LMP-based dating?
A: LMP dating is generally accurate for women with regular cycles. Ultrasound dating may be more precise, especially if LMP is uncertain.

Q3: What if I have irregular periods?
A: For irregular periods, ultrasound dating is recommended for more accurate gestational age determination.

Q4: When should I calculate my gestational age?
A: Calculate at your first prenatal visit and periodically throughout pregnancy to track progress and schedule appropriate tests.

Q5: Can this calculator determine my due date?
A: Yes, estimated due date can be calculated by adding 280 days (40 weeks) to your LMP date.