IVF Due Date Calculator
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Finding Your IVF Due Date
If you conceived through in vitro fertilisation (IVF), your due date depends on whether you had a three-day embryo transfer or a five-day embryo transfer. For a three-day transfer, you can work it out by adding 263 days from your transfer date. For a five-day transfer, the calculation is 261 days from your transfer date. If you’d rather not do the maths yourself, an IVF due date calculator can give you the answer instantly.
5-Day Embryo Transfer Due Date Calculation
If you’ve had a five-day embryo transfer, your estimated due date is worked out by counting 261 days from your transfer date. Another way of calculating is to add 266 days to the transfer date and then subtract five days. For ease, you can also select the “five-day transfer” option in a due date calculator to get an accurate result.
Other Ways to Calculate Your IVF Due Date
Several methods depend on your treatment type and the stage of embryo transfer. If your embryo transfer took place more than five days after fertilisation, simply subtract that number of days from 266 and then add the result to your transfer date. This method also applies if you’ve had an egg donation or donor embryo transfer. For both fresh donor eggs and donor embryos, you can estimate your due date by counting 266 days from the date of egg retrieval.
How to Calculate Your Due Date Without IVF
If you conceived naturally, your due date can be worked out in a few different ways. Some people calculate it from the first day of their last menstrual period (LMP), while others use their date of conception if they know it. An early ultrasound scan can also provide an estimate. For accuracy and convenience, many people prefer to use a pregnancy due date calculator to compare these methods and see which applies best to their situation.
How Accurate Are IVF Due Dates?
Every pregnancy is unique, and while IVF due dates are based on precise medical timings, babies still arrive on their own schedule. Many mums share mixed experiences. One recalled: “With my first IVF pregnancy, my waters broke at 8 p.m. on my exact due date!” Another said: “My IVF baby came five days early – I think he just couldn’t wait!” Others had different stories, such as: “Mine arrived one day before the due date,” and “I was induced at 41 weeks – she was very comfortable staying put!”
The takeaway is that IVF allows for an accurate calculation of your baby’s due date, but just like natural conception, the actual day your little one arrives may still hold a surprise.
frequantly asked questions
common questions asked about pregnancy ivf calculator
How many weeks is pregnancy?
Pregnancy lasts 40 weeks from the start of your last period. It’s likely that you’ll give birth a little before or after 40 weeks, but this estimate helps healthcare providers time your prenatal care. Your due date may be adjusted if you have an ultrasound or testing that shows your pregnancy is further along than you thought.
how accurate are baby size comparisions?
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when will i feel my baby move?
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what if my symptons dont match what's expected?
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