Good morning! ? I had my first ultrasound yesterday. It's such a mirac…

Good morning! ? I had my first ultrasound yesterday. It's such a miracle to see a baby's face at 6 weeks, and already there is a little one ?? The only thing that worried me was one moment: the length of the fetal nasal bone is just 1.5 mm, while the norm is more than 2.5 mm... The ultrasound technician said everything is fine. But she didn't answer why there might be such a significant difference in the size of the nasal bone Has anyone experienced this? Is everything okay with the baby? Did you then reach this norm?