Due dates

Mila
This is confusing, bare with me. Per <a href="https://glowing.com/glow-fertility-program">ivf</a> transfer date baby is due 8/28. But, baby was behind 5 days (docs told us we would miscarry for many weeks), but baby is fine. Now, maternal fetal doc says due date is 9/2, but obgyn and <a href="https://glowing.com/glow-fertility-program">ivf</a> doc still say 8/28. I guess it's an issue if they were going to induce me.
Were you due dates based on transfer date? Anyone have a similar issue. Baby is measuring 8/31 now.