IVF Due Date Calculator

With our IVF Due Date Calculator, it is now super easy to estimate when your bundle of joy will arrive!

Whether you’ve used donor eggs, donor embryos or have undergone a frozen embryo transfer (FET), our fantastic pregnancy calculator is here to provide you with all the information you need.

Last menstrual period date:

Which week of pregnancy are you in? Why do you need to know?

We are aware of how it feels to become a parent, and your anticipation of knowing when your little one makes their grand entrance into the world! Plus, knowing your due date is important for your healthcare providers to keep tabs on your baby’s growth and development. They can also keep an eye out for any potential risks or complications that may arise during your pregnancy.

On an average, pregnancy lasts for about 40 weeks or 280 days. When it comes to calculating the due date for natural conception, healthcare providers often rely on the first day of the last menstrual period rather than the date of conception.

Even if you have a regular menstrual cycle, ovulation doesn’t always happen on the same day. So while someone with a typical 28-day cycle might ovulate around day 14, it can happen earlier or later. This makes due dates more of an estimate rather than an exact prediction.
We are aware of how it feels to become a parent, and your anticipation of knowing when your little one makes their grand entrance into the world! Plus, knowing your due date is important for your healthcare providers to keep tabs on your baby’s growth and development. They can also keep an eye out for any potential risks or complications that may arise during your pregnancy.

On an average, pregnancy lasts for about 40 weeks or 280 days. When it comes to calculating the due date for natural conception, healthcare providers often rely on the first day of the last menstrual period rather than the date of conception.

Even if you have a regular menstrual cycle, ovulation doesn’t always happen on the same day. So while someone with a typical 28-day cycle might ovulate around day 14, it can happen earlier or later. This makes due dates more of an estimate rather than an exact prediction.

IVF Pregnancy Calculator

With an In–Vitro Fertilisation (IVF) pregnancy Calculator, it is easier to determine the date when you conceived..

To use our due date calculator IVF, 

  • Simply enter the date of your egg retrieval or embryo transfer, in the “Date of Transfer” field. 
  • Enter the type of IVF you had, out of the given options in the “Type of Transfer” field.

Based on the information provided by you, our Pregnancy calculator will calculate and give you your estimated due date.

Different IVF Cycle Options:

Type of TransferFormula for Calculation
IVF with own eggsTransfer date + 38 weeks
IVF with fresh donor egg cycleTransfer date + 38 weeks
Fresh donor embryo cycleTransfer date + 38 weeks
3 day FETTransfer date + 38 weeks – 3 days (for embryos)
5 day FETTransfer date + 38 weeks – 5 days (for blastocysts)

How accurate is the IVF Pregnancy Calculator?

It is important to keep in mind that even with IVF, due dates are still only estimates. Factors such as the growth rate of the embryo, changes in implantation time, and individual differences in pregnancy length can all affect the actual date of delivery.

Additionally, Additionally, if you have undergone a frozen embryo transfer (FET), the estimated due date with IVF Due Date Calculator may be less accurate due to the fact that the embryos may have been frozen for an extended period of time before transfer. In these cases, your healthcare provider may adjust your due date based on additional ultrasound measurements or other indicators of gestational age.

If you have any questions or feedback about our IVF due date calculator, please feel free to reach out to us. We are happy to assist you in your journey to happy parenthood!

Stages of Pregnancy Week by Week

2 weeks pregnant

At week 2, ovulation might begin. If a sperm fertilizes an egg during ovulation, you will get pregnant.

3 weeks pregnant

At week 3, and a week after fertilization – your developing baby is now a small ball composed of numerous rapidly multiplying cells.

4 weeks pregnant

At week 4, the baby is in the embryonic stage and is composed of two layers. Additionally, the placenta is in its early stages of formation.

5 weeks pregnant

At week 5, your developing embryo is experiencing rapid growth. During this time, you may start to experience discomforts such as breast tenderness and fatigue.

6 weeks pregnant

At week 6, your baby’s heart has already begun to beat. At this stage, you may also be experiencing pregnancy discomforts such as morning sickness and sore breasts.

7 weeks pregnant

At week 7, your baby is forming facial features such as eyes, nose, mouth, and ears. You might need to pee frequently.

8 weeks pregnant

At week 8, your baby’s hands and feet are developing with tiny webbed fingers and toes. You might be experiencing nausea and fatigue, while also making choices regarding prenatal tests.

9 weeks pregnant

At week 9, your baby is taking on a more human-like appearance. It’s common to experience morning sickness and mood swings.

10 weeks pregnant

At week 10, the most crucial stage of your baby’s development is completed! You might be considering getting some maternity clothing or maybe some new bras.

11 weeks pregnant

At week 11, your baby is actively kicking and stretching, although you may not be able to feel it yet.

12 weeks pregnant

At week 12, your baby is able to curl their tiny toes and make sucking movements. You might be experiencing heartburn

13 weeks pregnant

At week 13, your baby has developed little fingerprints and has now grown to 3 inches long. You’re about to finish your first trimester.

14 weeks pregnant

At week 14, your baby would start making expressions with their tiny features. You are more energetic and less nauseated at this stage.

15 weeks pregnant

At week 15, your baby is developing mobile joints and developing taste buds. Experiencing a stuffy nose? It’s a side effect of pregnancy.

16 weeks pregnant

At week 16, you might be experiencing reduced nausea and fewer mood swings. At this stage, your baby is about to embark on a significant growth spurt.

17 weeks pregnant

At week 17, your little one’s skeletal structure is transforming from soft cartilage to solid bone, while the umbilical cord is becoming more robust and thick.

18 weeks pregnant

At 18 weeks, an ultrasound can reveal your baby’s developed genitals. Feeling more hungry than usual? It’s normal to have an increase in appetite at this stage.

19 weeks pregnant

At week 19, Your baby’s scalp is sprouting hair. If your side aches, you are experiencing round ligament pain.

20 weeks pregnant

At week 20, you’ve reached the halfway point of your pregnancy – Congrats! The taste buds of your baby are now functioning.

21 weeks pregnant

At week 21, Your baby’s early flutters are turning into kicks, so you can feel your baby moves. Interesting fact: Your baby now has eyebrows.

22 weeks pregnant

At week 22, your heartbeat may be heard by your baby, and your growing belly might be attracting more hand touches.

23 weeks pregnant

At week 23, your baby has a developed sense of movement, and you are experiencing swelling in your ankles and feet.

24 weeks pregnant

At week 24, your baby is about to change from long and lean, and your uterus is now the size of a soccer ball.

25 weeks pregnant

At week 25, your baby is growing more hair and adding baby fat, while your hair may look extra shiny as well.

26 weeks pregnant

At week 26, your baby is practicing breathing by inhaling and exhaling a little amount of amniotic fluid. It’s good practice for breathing.

27 weeks pregnant

At week 27, your baby is opening and closing their eyes, sucking their fingers, and may experience hiccups.

28 weeks pregnant

At week 28, your baby’s eyes are able to see light filtering in through your womb, and you’re starting your last trimester.

29 weeks pregnant

At week 29, your baby’s lungs and muscles are maturing, and its head is growing to make room for its developing brain.

30 weeks pregnant

At week 30, your baby now has almost 3 pounds weight, and you are experiencing clumsiness, mood swings, and fatigue.

31 weeks pregnant

At week 31, you might be experiencing Braxton Hicks contractions and have difficulty sleeping due to your baby’s powerful kicks.

32 weeks pregnant

At week 32, your baby is gaining weight while your uterus is expanding, which may result in symptoms such as heartburn and shortness of breath.

33 weeks pregnant

At week 33, your baby weighs a little more than 4 pounds, and you may be having trouble getting comfy in bed.

34 weeks pregnant

At week 34, your baby’s central nervous system and lungs are maturing, and you may experience dizziness and fatigue.

35 weeks pregnant

At week 35, your baby is gaining weight, but movement may be limited due to a lack of space in the womb. You might be still feeling some movements.

36 weeks pregnant

At week 36, your baby is gaining about an ounce a day, and you may feel them “drop” down into your pelvis soon.

37 weeks pregnant

At week 37, your baby’s lungs and brain continue to mature. And you might be experiencing increased vaginal discharge and occasional contractions.

38 weeks pregnant

At week 38, your baby has a strong grip, and you’ll soon be able to see it for yourself! Be mindful of any indications of preeclampsia.

39 weeks pregnant

At week 39, your baby has reached full term and is eagerly awaiting their arrival into the world. Remember to contact your healthcare provider right away if your water breaks.

40 weeks pregnant

At week 40, your baby is approximately the size of a small pumpkin. It’s perfectly normal if you’re still pregnant at this point, as many pregnancies go past their due dates.

41 weeks pregnant

At week 41, you can expect to go into labour or be induced shortly. It’s normal for your baby to remain active right up until delivery.

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Happy Parent's Review of the IVF and FET Due Date Calculator

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    FREQUENTLY ASKED QUESTIONS

    01/ How is it possible that the due dates for Frozen Embryo Transfers on Day 5, Day 6, and Day 7 are the same?

    For a Frozen Embryo Transfer, the due dates on Day 5, Day 6, and Day 7 are the same because the age of the embryo is calculated from the day of the egg retrieval, not the day of the transfer. The embryos are usually frozen on Day 5 or Day 6, and occasionally on Day 7, and are then thawed for transfer. Therefore, the due date is calculated based on the age of the embryo at the time of retrieval, not the transfer.

    02/ Can a IVF Pregnancy Calculator predict the gender of a baby?

    No, an IVF due date calculator cannot predict the gender of a baby. The due date is calculated on the basis of the date of embryo transfer and the length of the menstrual cycle, and has nothing to do with the gender of the baby.

    03/ What day is the best day to transfer your embryo?

    The best day for embryo transfer can depend on several factors, like the quality of embryos and the patient’s age. Typically, day 5 or day 6 is considered the best time for embryo transfer, as it increases the chances of implantation and successful pregnancy. However, your doctor will determine the best day for your specific situation.

    04/ ‍ How accurate is an IVF due date calculator?

    A IVF Due Date Calculator can provide a fairly accurate estimate of a due date, but it’s crucial to keep in mind that it is still an estimate. Factors such as early or late implantation, multiple pregnancies, and gestational age can all affect the actual due date.

    05/ Can an IVF due date calculator be used for all IVF or FET cycles?

    Yes, an IVF Due Date Calculator can be used for all types of IVF or FET cycles. However, it’s important to make sure that you input the correct information for your specific cycle, such as the date of embryo transfer and the length of your menstrual cycle.

    06/ What’s the difference between fresh and frozen embryo transfers?

    Fresh embryo transfer involves transferring an embryo into the uterus immediately after it has been created through IVF. Frozen embryo transfer (FET) involves freezing the embryo after it has been created and then transferring it into the uterus at a later date. FET has a higher success rate than fresh transfers and allows for more flexibility in scheduling.

    07/ ‍ Can an IVF due date calculator be used for all IVF cycles?

    Yes, an IVF due date calculator can be used for all types of IVF cycles, including fresh embryo transfers and frozen embryo transfers (FET). However, it’s crucial to input accurate information specific to your cycle for the most accurate estimation.

    08/ What factors can affect the accuracy of an IVF due date calculator?

    Several factors can affect the accuracy of an IVF due date calculator, including the timing of embryo transfer, the length of the menstrual cycle, and individual variations in pregnancy development. Additionally, complications such as early or late implantation can impact the estimated due date.

    09/ Can an IVF due date calculator predict the gender of the baby?

    No, an IVF due date calculator cannot predict the gender of the baby. The due date calculation is based solely on the date of embryo transfer and the length of the menstrual cycle and does not take into account factors related to fetal development, including gender.

    10/ How often should I use an IVF due date calculator?

    You can use an IVF due date calculator as often as needed throughout your IVF journey. It can be helpful for tracking the progress of your pregnancy and estimating your due date, especially if your healthcare provider has not provided you with this information.

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