How Is IVF Due Date Calculator

  Due date calculator for IVF pregnancies. Due date calculation for IVF with own eggs (with or without ICSI) or with fresh donor egg cycle.  

Did you wonder how to calculate the due date with IVF? With this IVF calculator, you can find out the expected date of delivery. Pick a due date calculation method from the list above. You are free to put in any dates or figures, and our calculator will do the rest. We have also included a couple of notes on variants of each method. Note that if your treatment is for surrogacy, we suggest you consult a specialist for help with calculating the due date.

If you are an IVF patient and your pregnancy is of a donor egg or donor embryo, then the due date will be calculated from the day of retrieval of eggs or embryos, not from the day of transfer of fresh embryos. You may also like to read about the IVF calendar.

How Does IVF Affect Due Date

This calculator helps to calculate the due date and gestational age after the embryo transfer or the completed IVF cycle. The IVF cycle is defined as starting on the day of the egg retrieval, or when an embryo transfer has taken place. You can enter your knowledge base data or hypothetical values which include: normal peak estradiol level at egg retrieval, follicle size following hormone stimulation, peak estradiol level following hormone stimulation and a few others that have known parameters that affect the due date calculation with IVF.

Our fantastic IVF due date calculator estimates the arrival of your baby and tells you how pregnant you are. It also works if you’ve had donor eggs, donor embryos or a FET.

How many weeks pregnant are you?

The average duration of a healthy pregnancy is approximately 40 weeks, or 280 days. If you conceive of your child through natural means, the estimated due date is typically calculated based on the first day of your most recent period rather than the date on which you conceived the child. Why is this the case?

The reason for this is that the majority of people do not know when they ovulated or conceived their child. Ovulation typically occurs somewhere between days 14 and 28 of a menstrual cycle that is regular, lasting 28 days.

Due to the fact that ovulation can take place either earlier or later, the date that was provided is not entirely accurate. This is the reason why an expected delivery date is nothing more than a ballpark figure for the day that the baby is most likely to arrive.

Due date calculation for IVF pregnancies

In-vitro fertilization (IVF) is the only case in which your health care provider will know exactly when you conceived. Enter this date in the “Date of transfer” field of the calculator.

You can calculate your due date by using different formulas depending on the type of IVF you had. Choose your IVF type in the “Type of transfer” field of the calculator. 

This is how Flo’s calculator formulas work based on your IVF type (these formulas are set automatically in the calculator for each option you choose):

  • IVF with own eggs (with or without ICSI) — Egg retrieval date + 266 days (or 38 weeks)
  • IVF with fresh donor egg cycle (with or without ICSI) — Egg retrieval date + 266 days (or 38 weeks)
  • Fresh donor embryo cycle — Egg retrieval date + 266 days (or 38 weeks)
  • 3 day FET — Transfer date + 266 days (or 38 weeks) – 3 days (for embryos)* 

*Sometimes your embryos’ age is more than 3 days, so it’s important to subtract the exact age of the embryos. 

  • 5 day FET — Transfer date + 266 days (or 38 weeks) – 5 days (for blastocysts)* 

*If the blastocysts’ age is more than 5 days, you need to subtract their exact age.

How accurate are IVF due dates?

Due date calculations may vary regardless of whether you conceived naturally or via IVF. Even with IVF and ultrasound measurements, no due date is a guarantee. It’s just a way to provide a window of time in which you are likely to go into labor.

Best IVF Due Date Calculator

Our patients kept asking—so we built one! It doesn’t matter if you’re expecting one baby, twins, or triplets; our incredible calculator can estimate when your IVF babies will be born. Additionally, it includes coverage for FETs along with all other fertility treatments. Simply select the type of treatment you want, as well as the date of either your egg retrieval or your embryo transfer. We believe that it is the most accurate IVF due date calculator available today! Can you tell me about the fertility treatment that you underwent? IVF using the woman’s own eggs Fresh donor-egg cycle Fresh donor-embryo cycle Transfer of a frozen embryo on day three Transfer of a frozen embryo on day five.

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Disclaimer: Every pregnancy is different, so dates given are approximate. You must not rely on this calculator as a substitute for medical diagnosis or advice from a healthcare professional.

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