1. What is Frozen IVF EDD Calculation?

The Frozen IVF EDD (Estimated Due Date) calculation determines the expected delivery date for pregnancies resulting from frozen embryo transfer (FET). This calculation adds 266 days to the FET date to estimate when the baby is likely to be born.

2. How Does the Calculator Work?

The calculator uses the following formula:

Where:

• \( EDD \) — Estimated Due Date
• \( FET Date \) — Frozen Embryo Transfer Date
• \( 266 days \) — Standard gestation period for IVF pregnancies

Explanation: The 266-day calculation accounts for the precise timing of embryo development in frozen IVF cycles, providing a more accurate due date estimate than traditional pregnancy calculations.

3. Importance of EDD Calculation

Details: Accurate due date calculation is crucial for proper prenatal care planning, monitoring fetal development milestones, scheduling important medical appointments, and preparing for delivery.

4. Using the Calculator

Tips: Enter the exact date of your frozen embryo transfer. The calculator will automatically compute your estimated due date by adding 266 days to the FET date.

5. Frequently Asked Questions (FAQ)

Q1: Why 266 days for frozen IVF pregnancies?
A: The 266-day calculation accounts for the embryo's developmental age at transfer plus the standard 266-day gestation period, providing the most accurate due date estimate.

Q2: How accurate is this calculation?
A: This method is highly accurate for frozen IVF cycles as it starts from the known embryo transfer date rather than estimating from the last menstrual period.

Q3: Should I use this or my doctor's calculation?
A: Always follow your healthcare provider's official due date calculation, as they may consider additional clinical factors specific to your pregnancy.

Q4: What if I had a day 3 vs day 5 embryo transfer?
A: This calculator assumes standard embryo development timing. For day 3 transfers, some providers may adjust the calculation by adding 2 additional days.

Q5: Can the due date change during pregnancy?
A: Yes, healthcare providers may adjust the due date based on ultrasound measurements and other clinical assessments during prenatal care.