Question 1

Why is my IVF due date different from my clinic's date?

Accepted Answer

Your clinic may have used a different milestone or their own calculation method. Most clinics use the day 3 or day 5 count method. This calculator gives you an estimate based on the milestone you select. Your doctor's dating from your first ultrasound is the most authoritative date and should be your guide.

Question 2

Is an IVF pregnancy different from a natural pregnancy?

Accepted Answer

Once pregnancy is established, an IVF pregnancy is medically managed very similarly to a natural pregnancy. The main difference is that IVF allows for precise dating from known fertilization dates. The developmental milestones, trimesters, and overall pregnancy experience are the same.

Question 3

What if I had a frozen embryo transfer (FET)?

Accepted Answer

Frozen embryo transfers are dated slightly differently. For a medicated FET cycle, your due date is typically calculated from the date of your progesterone start or from the transfer date itself (using the same day 3 or day 5 count). For a natural cycle FET, it is often dated from ovulation. Always confirm with your clinic.

Question 4

Will my due date change after my first ultrasound?

Accepted Answer

It may. While your IVF dates are usually very accurate, your doctor may still confirm your due date with an early ultrasound. If there is a discrepancy of more than about 5 days between your calculated date and the ultrasound measurement, your doctor may adjust your due date.

IVF Due Date Calculator

IVF Due Date Calculator

IVF Due Date Calculator

How to Use the IVF Due Date Calculator

Important Medical Notes

Frequently Asked Questions

References