Are you ready to start your countdown? Calculating your due date after IVF means that you can mark your calendar and get excited for the big day.
Accurately calculating your due date is essential for planning and preparing for your baby's arrival, especially when navigating the unique journey of IVF. There are IVF due date calculators that can provide you with a precise estimate of your baby’s birth date based on the specifics of your IVF cycle.
If your surrogate is pregnant, you can use these calculations to find out when your baby may arrive. If you have embryos ready for IVF, reach out to a surrogacy specialist and find out your timeline to become a parent with surrogacy.
IVF Due Date Calculator
You can use IVF due date calculators from reputable IVF clinics to determine the due date for your pregnancy. Click here or follow this link an IVF calculator. This calculator can be used for your own IVF journey or for a surrogate pregnancy.
How to Calculate the Due Date with IVF
When you calculate the due date for IVF, your embryos usually have developed somewhat before transfer, which means that the due date is a little bit closer. Embryos usually develop for 3-7 days before transfer, and depending on the amount of time the embryo has developed, you calculate a little bit differently.
When you use IVF, the basic calculation for estimating your due date is:
date of transfer + 266 days – days of embryo development before transfer = your estimated due date.
Below are some examples of common days and their calculations.
Day 3 Embryo Transfer Due Date
For a day 3 embryo transfer, you can add 263 days + date of embryo transfer to get your estimated due date.
Day 4 Embryo Transfer Due Date
For a day 4 embryo transfer, you can add 262 days + date of embryo transfer to get your estimated due date.
Day 5 Embryo Transfer Due Date
For a day 5 embryo transfer, you can add 261 days + date of embryo transfer to get your estimated due date.
Day 6 Embryo Transfer Due Date
For a day 6 embryo transfer, you can add 260 days + date of embryo transfer to get your estimated due date.
Day 7 Embryo Transfer Due Date
For a day 7 embryo transfer, you can add 259 days (or 37 weeks) + date of embryo transfer to get your estimated due date
The best way to get an accurate due date estimate is by asking your physician as you complete your embryo transfer.
How to Calculate Due Date for Yourself
Since human gestation is approximately 38 weeks or 266 days, you can calculate your due date by adding 266 days to the date. If you become pregnant without assisted reproduction or using fertility drugs or IUI, the date you use is the first day of your last menstrual period.
So the basic calculation for pregnancy is:
first day of your last menstrual period + 266 days = your due date.
This basic calculation is a little bit different when you are using assisted reproduction like IVF or surrogacy.
How to Calculate Due Date with IVF and a Surrogate
Calculating your due date with a surrogate, you will use the same process as any other IVF journey, so you can use the calculations above if you are on a surrogacy journey.
Get help with your journey and find out how quickly you can become a parent when you contact a surrogacy specialist.
FAQ
Is the day of embryo transfer considered day 1 of pregnancy?
People often ask ,”is embryo transfer day 1 or 0 of pregnancy?” but in reality, transfer day may be further along. If your embryo is transferred after multiple days of development, those days of development count towards how “far along” you or your surrogate is. So if your embryos were transferred after 7 days of development and the transfer results in a pregnancy, those 7 days would count towards a week of pregnancy.
In other words, if your surrogate has a seven day embryo transfer, they may be counted as one week pregnant the day of transfer.
On the other hand, there is no guarantee that the embryo will implant and become a pregnancy. On the day of transfer, the surrogate’s body does not have all of the signs of pregnancy (hormone changes, etc.) So she likely won’t get a positive pregnancy test at this point, and it doesn’t guarantee that the pregnancy will be successful.
For an exact estimate of how “far along” your surrogate is, the best thing to do is ask your physician.
How to calculate due date after embryo transfer?
To calculate your due date after embryo transfer, you can use this formula:
transfer date + 266 days – days of embryo development at transfer = your due date
How many weeks pregnant are you after an IVF transfer?
In most cases, your surrogate is less than one week pregnant after an IVF transfer. IVF transfers usually occur on day 3 or 5 of embryo development, and most transfers happen before day 7 of embryo development. If your transfer happens on day 7, you or your carrier would be considered one week pregnant. If it happens on day 5, your carrier would be considered 5 days pregnant, and if it happens on day 3 of embryo development, she would be considered 3 days pregnant.
How do you calculate due date after implantation?
If your embryo has implanted and you have confirmed pregnancy through a pregnancy test, you can use the following formula to calculate due date:
266 days + date of embryo transfer OR first day of last menstrual period – days of embryo development at transfer (if using IVF) = due date
How many days after embryo transfer is period due?
If you have an embryo transfer and it results in pregnancy, your next expected period will be after pregnancy—so 9 months away or a little more. But if your embryo transfer is unsuccessful, you will likely have another period within approximately one month—this depends on your personal cycle.