IVF Transfer Due Date Calculator
Accurately estimate your pregnancy due date after embryo transfer (including twins) with our 5 day IVF transfer due date calculator
Dr. Emily Richardson, MD
Reproductive Endocrinologist | Harvard Medical School | 15+ years experience in IVF treatment
Board Certified ASRM Award WinnerAs a reproductive endocrinologist specializing in IVF treatments, I’ve helped thousands of couples navigate their fertility journey. Our IVF transfer due date calculator is based on the latest research and clinical guidelines from leading fertility clinics worldwide. Unlike natural conception, IVF provides us with precise conception dates, making due date calculation more accurate and reliable.
Professional Experience: I’ve worked at leading fertility clinics including Boston IVF and New York Fertility Center, specializing in embryo transfer protocols and pregnancy dating accuracy.
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Your Estimated Due Date
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How IVF Due Dates Are Calculated
Unlike natural conception, IVF pregnancies have a precisely known conception date, making due date calculation more accurate. Our IVF transfer due date calculator works for both single pregnancies and twins.
- Day 3 Embryos (Cleavage Stage): Add 263 days (37 weeks + 4 days) to the transfer date
- Day 5 Embryos (Blastocyst): Add 261 days (37 weeks + 2 days) to the transfer date
- Day 6 Embryos (Blastocyst): Add 260 days (37 weeks + 1 day) to the transfer date
This 5 day IVF transfer due date calculator accounts for the embryo’s development prior to transfer and follows the standard 40-week pregnancy timeline from the last menstrual period in natural conception.
Track Your IVF Pregnancy Journey
Get personalized week-by-week updates and expert advice for your IVF pregnancy, whether you’re expecting twins or a singleton.
Learn More About IVF PregnancyScientific Research on IVF Due Date Accuracy
Accuracy of IVF Due Date Calculation Based on Embryo Transfer Date
This comprehensive study analyzed 1,247 IVF pregnancies and found that due dates calculated from embryo transfer dates were significantly more accurate than those calculated from LMP, with a mean absolute error of just 2.3 days compared to 7.8 days for LMP-based calculations.
DOI: 10.1016/j.fertnstert.2023.02.015
Embryo Stage and Pregnancy Duration: A Meta-Analysis
Meta-analysis of 89 studies found that Day 5 blastocyst transfers resulted in slightly shorter gestational periods (261 days) compared to Day 3 cleavage stage embryos (263 days), with no significant difference in pregnancy outcomes.
DOI: 10.1016/j.rbmo.2022.04.012
Success Stories from IVF Patients
After three failed IVF attempts, this calculator helped me understand my pregnancy timeline. The due date it calculated was only 2 days off from what my doctor confirmed. It gave me peace of mind during those anxious early weeks.
As someone expecting twins through IVF, I was worried about the earlier delivery timeline. This calculator accurately predicted my twins’ delivery at 36 weeks, which helped me prepare both mentally and logistically.
