1. What is Frozen EDD Calculation?

The Frozen EDD (Estimated Due Date) calculation is used to determine the expected delivery date for pregnancies resulting from frozen embryo transfer (FET) procedures in IVF treatment.

2. How Does the Calculator Work?

The calculator uses the standard formula for frozen embryo transfers:

Where:

• \( Frozen EDD \) — Estimated Due Date
• \( FET Date \) — Frozen Embryo Transfer Date
• \( 266 days \) — Standard gestation period from embryo transfer

Explanation: This calculation accounts for the precise timing of embryo development in frozen transfer cycles, providing an accurate due date estimation.

3. Importance of Frozen EDD Calculation

Details: Accurate due date calculation is crucial for proper prenatal care scheduling, fetal development monitoring, and delivery planning in IVF pregnancies.

4. Using the Calculator

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

5. Frequently Asked Questions (FAQ)

Q1: Why 266 days for frozen embryo transfers?
A: 266 days represents the standard gestation period calculated from the date of embryo transfer, accounting for embryo development prior to transfer.

Q2: How does this differ from natural conception due dates?
A: Natural conception calculations typically use 280 days from last menstrual period, while FET calculations use the precise embryo transfer date.

Q3: Is this calculation accurate for all frozen embryos?
A: Yes, this calculation applies to all frozen embryo transfers regardless of embryo development stage at freezing.

Q4: Should I confirm this with my healthcare provider?
A: Always confirm your due date with your healthcare provider, as they may adjust based on ultrasound measurements and clinical factors.

Q5: What if I had a day 3 vs day 5 embryo transfer?
A: The 266-day calculation remains the same, as the transfer date accounts for the embryo's developmental stage.