Growth scans and birth weight!

Has anyone had a scan not long before birth and it's been accurate or far off?

I remember with my daughter they scanned me two days before I gave birth. They estimated my daughters weight as 7lbs. Well she was born two days later at 6lb4.

This time round I'm 36 weeks exactly and baby is roughly 5lb6. I'm just not taking anything seriously with scan estimates as of them being off with my first baby.

Wondering if anyone else had the same thing happen or if their baby was predicted smaller but was born bigger?