FET and IVF Due Date Calculator – Estimating IVF/FET Delivery Date

IVF and FET Due Date Calculator

IVF and FET Due Date Calculator

Are you someone who’s eagerly awaiting the arrival of a little bundle of joy, but your pregnancy journey has taken a slightly different route than the conventional one? Perhaps you’ve undergone IVF or FET (frozen embryo transfer) and are now wondering how to calculate your due date.

Firstly, congratulations on taking this exciting step in starting or expanding your family! While IVF and FET can be a bit more complex than natural conception, the good news is that you can still determine your due date, just like any other expectant parent by using our IVF Due Date Calculator.

Today, we’ll take a closer look at the process of calculating your due date with IVF and FET, the factors that can affect it, and some handy tools and resources to make the process a bit easier. So sit back, relax, and let’s dive into the world of due date calculations for IVF and FET pregnancies.

IVF and FET Due Date Calculator

How far along in your pregnancy are you now?

Well, that really depends on a few different factors! Typically, the length of a pregnancy is measured in weeks, starting from the first day of your last menstrual period. So if you know that date, you can count the number of weeks that have passed since then to estimate how far along you are.

However, if you’ve undergone IVF or FET, your due date may have been calculated differently based on your embryo transfer date. In that case, you would count the number of weeks from the transfer date to determine your current pregnancy status.

Of course, it’s always best to confirm your pregnancy status and due date with your gynecologist, who can provide more accurate information based on ultrasounds and other tests. But in general, counting the number of weeks since your last menstrual period or embryo transfer can give you a rough idea of how far along you are in your pregnancy.

Estimating IVF Pregnancy Due Dates

When it comes to calculating the due date for IVF pregnancies, there are a few key factors to keep in mind.

First of all, it’s important to know that the embryo transfer date is usually used to figure out the due date for an IVF pregnancy, not the date of the egg retrieval. This is because embryo transfer happens when the fertilized egg is put into the uterus and starts to grow into a fetus.

Once you have the embryo transfer date, you can use it to calculate your estimated due date using a few different methods. One common approach is to count forward 280 days from the date of your embryo transfer, as this is the average length of a pregnancy.

Another option is to use an online due dates calculator like the IVF due date calculator specifically designed for IVF pregnancies, which can take into account factors like the number of embryos transferred and the date of the blastocyst transfer.

How reliable are IVF pregnancy projections?

The accuracy of IVF due dates can depend on a few factors. In general, the due date for an IVF pregnancy is calculated based on the date of embryo transfer or, in the case of frozen embryos, the date of egg retrieval. This means that the due date is typically more precise than in a natural conception, where it can be more difficult to pinpoint the exact date of conception.

However, some factors can still affect the accuracy of IVF due dates. For example, if there are variations in the rate of embryonic development or if the exact date of embryo transfer is uncertain, this can impact the due date calculation. Additionally, complications during the pregnancy, such as preterm labor or a slower rate of fetal growth, can also affect the accuracy of the due date.


Q1: Is the due date calculation different for fresh vs. frozen embryo transfers (FET)?

Ans: Yes, the due date calculation is different for FETs as the embryo transfer date is known. The due date is calculated by adding 266 days (38 weeks) to the FET date or 280 days (40 weeks) to the egg retrieval date if the embryo was frozen on that day.

Q2: What are some factors that can affect the due date for IVF pregnancies?

Ans: Factors that can affect the due date for IVF pregnancies include the timing of the embryo transfer or egg retrieval, the age and health of the mother, and any complications during pregnancy.

Q3: Can the due date change during an IVF pregnancy?

Ans: Yes, the due date can change during an IVF pregnancy if there are any complications or if the baby is measuring smaller or larger than expected. The due date may be adjusted accordingly by the healthcare provider.

Q4: Is it possible to know the exact due date for IVF pregnancies?

Ans. While the due date for IVF pregnancies can be estimated based on the timing of the egg retrieval or embryo transfer, it is not always possible to know the exact due date. However, regular ultrasounds throughout the pregnancy can help determine a more accurate due date.

Final Words

In conclusion, estimating an IVF or FET pregnancy’s due date may seem difficult, but it’s a vital step in preparing for your baby’s birth. IVF due dates are more accurate than normal conception due dates; however, several variables may still affect them.

You can remain educated and prepared during your pregnancy by working with your doctor and using tools like due date calculators and fetal growth charts. Every pregnancy is different, so trust your healthcare team to safely deliver you and your baby.

Congrats on starting this amazing road to motherhood, and best wishes as you anticipate your little miracle.

Sarah here, mother of two here to guide you on your parenting journey. I know motherhood isn't easy, but I'm here to share my wisdom and experience so that you can make the most out of this amazing adventure. Linkedln

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