What does it mean nuchal fold measurement 8.0

What does it mean nuchal fold measurement I did genetic test at 10 weeks and everything was normal. Today I did my 20 weeks ultrasound and I found out I’m measuring 2 weeks early and my baby nasal bone measures 8.8mm anyone was ever in a similar situation and everything turned normal after the baby is born?

Edit nuchal fold measurement 8..0

Doctor said he is not worried since everything was at low risk at my 10 weeks genetic test. I will have to to my OB on my 22 weeks visit. I hope everything is ok