IVF Due Date Calculator

Estimate Your IVF Due Date

The IVF Warrior IVF and FET Pregnancy Due Date Calculator helps you accurately estimate your due date by IVF based on your embryo transfer date. This easy-to-use tool is designed for all types of fertility treatments, including donor eggs, donor embryos, fresh IVF cycles, and frozen embryo transfers (FET). Whether you had a 3-day or 5-day transfer, you can quickly calculate when your baby will arrive.

Simply enter your embryo transfer date and let our IVF due date pregnancy calculator do the rest. Perfect for patients using donor eggs, donor embryos, or undergoing fresh or frozen IVF cycles. Get precise due date estimates tailored to your unique fertility journey.

Medical Disclaimer: This tool is for educational purposes only and does not constitute medical advice. While the predictions are based on general reproductive health data, they are not intended to diagnose, treat, or replace guidance from a qualified healthcare provider. If you are experiencing fertility concerns or irregular cycles, consult your doctor or fertility specialist for personalized support.

IVF & FET Due Date Calculator

Different IVF Cycle Options:

There are several types of variables that can take place during an IVF cycle:

  • IVF using own eggs cycle

  • IVF with fresh donor eggs cycle

  • Fresh donor embryo cycle

  • 3 day frozen embryo transfer (3-day FET) cycle

  • 5 day frozen embryo transfer (5-day FET) cycle

IVF: How Many Weeks Pregnant Are You?

Typically, pregnancy lasts for about 40 weeks (280 days). If you conceive at-home with no medical assistance, the estimated due date is generally determined based on the first day of your last period (cycle day 1), not from the date of conception.

Why? Typically, this is because most people don’t know exactly when they ovulated or when they conceived. Someone with a regular 28-day menstrual cycle usually ovulates around day 14, but cycles can vary in length. However, this date isn’t 100-percent accurate, as ovulation can occur earlier or later. This is why a due date is just a rough estimate of the day the baby is likely to arrive, not a guarantee. 

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 imaging, no due date is a guarantee.

IVF Due Date Calculator

IVF & FET Due Date Calculator

Note: This tool provides an estimate only. Always confirm with your fertility care team.

IVF FAQs

  • IVF, or In Vitro Fertilization, is a fertility treatment where an egg is fertilized by sperm outside the body and the resulting embryo is implanted into the uterus.

  • FET refers to a procedure where a frozen embryo from a previous IVF cycle is thawed and transferred into the uterus to achieve pregnancy.

  • IVF due dates are usually calculated from the known timing of fertilization, egg retrieval, or embryo transfer. In a typical pregnancy, 40 weeks is counted from the first day of the last menstrual period. With IVF, the timeline can be more precise because the embryo’s development stage and transfer date are known. For example, a Day 5 embryo transfer is calculated differently than a Day 3 embryo transfer because the embryo is already two days further along at the time of transfer.

  • In IVF, the exact date of embryo transfer is known, so due dates are more accurate compared to natural conception, where ovulation timing can vary.

  • A 3-day transfer means the embryo was transferred three days after fertilization, while a 5-day transfer (also called a blastocyst transfer) occurs five days after fertilization. The due date calculation takes this difference into account.

  • Yes, the IVF Due Date Calculator can accurately calculate your due date if you used donor eggs or donor embryos by inputting your embryo transfer date.

  • A fresh IVF cycle involves transferring a newly fertilized embryo, while FET uses a previously frozen embryo from a prior cycle. Both methods have their own due date calculation methods.

  • Yes, like natural pregnancies, IVF and FET pregnancies can go past the due date.

  • Key milestones after IVF or FET include the confirmation of pregnancy via blood tests, the first ultrasound to check for a heartbeat, and the transition from fertility care to regular prenatal care after 8–12 weeks.

Medical Disclaimer: Every pregnancy is different, so the dates given are approximate. This tool should not be considered as a substitute for any professional medical service nor as a substitute for clinical judgment from a healthcare professional. Always seek the advice of your healthcare provider or qualified medical professional with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read in this blog.