IVF Due Date Calculator
Calculate your due date specifically for IVF transfers (3-day or 5-day embryos).
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Result
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Formula
Specialized calculation based on the precise date of embryo transfer.
Worked Example
Calculating Your IVF Due Date
- For a 5-day transfer (Blastocyst): Add 261 days to the transfer date.
- For a 3-day transfer: Add 263 days to the transfer date.
- For Egg Retrieval/Fertilization: Add 266 days to the retrieval date.
- The calculation assumes a standard 280-day pregnancy starting 14 days before fertilization.
Your IVF clinic will provide an official due date, which this tool estimates based on these industry-standard offsets.
You can also calculate changes using our Pregnancy Due Date Calculator or Gestational Age Calculator.
Frequently Asked Questions
Why is IVF due date different?
In natural conception, the exact day of fertilization is unknown. In IVF, the date is precise, allowing for a more accurate calculation than using the last period (LMP).
How many weeks pregnant am I after transfer?
On the day of a 5-day transfer, you are considered technically 2 weeks and 5 days pregnant.
What is a fresh vs frozen transfer?
A fresh transfer happens days after retrieval. A frozen transfer (FET) uses embryos from a previous cycle. For both, the "transfer date" is the key input.
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