Measuring ahead of schedule FET

Reese

So I just had my first ultrasound today and we were able to see the gestational sac and the yolk sac. We go pregnant through <a href="https://glowing.com/glow-fertility-program">IVF</a> via FET and according to my transfer date with a 5 day blastocyst I am 5+2. But the ultrasound shows me at 6+2.

Has that happened to anyone? Does this mean my due date is earlier than expected?