Was your due date based on transfer date? Long story..ours was, but baby was measuring 5 days behind. Maternal fetal doc, moved back due date 5 days and said likely implant late. But, obgyn, midwife and <a href="https://glowing.com/glow-fertility-program">ivf</a> still say it's according to transfer date. It's been confusing on their end as they have to have a correct date incase we need to induce (autoimmune issues).