How accurate is an IVF due date compared to natural pregnancy?

IVF due dates are generally more accurate than natural pregnancy due dates because the exact fertilization and transfer dates are known. Unlike natural pregnancies that estimate ovulation timing, IVF provides precise dates for:

• Egg retrieval
• Fertilization
• Embryo transfer (day 3 or day 5)

This precision allows for more accurate pregnancy dating and monitoring throughout the pregnancy journey.