brainysmurfs, what is ur bb's neck thickness.. i tink we cannot just base on thickness alone. the nasal bone, blood test, age play a part too. so dun worry too much abt it.
just to share, my #1 neck thickness was 2.5mm which is alr beyond the 2.0mm range so gynae was quite worried. but after combining blood test and age n nasal bone, my probability score is quite ok though not ideal.. my #1 turn out ok..so dun worry ok!!