Quoting Ashley Zernell:" yeah i have the level 2 ultrasound on the 25th because they wanted to wait until i was 18 weeks..im not ... [snip!] ... the cf or the ds..i have a 1/240 chance with the ds..im only gonna be concerned of the ultra sound shows characteristics of it"
my genectic counselour told me the ultra sound only has a 50% chance of finding out because there not always correct in determining and some will show no other lankmarks or indicators and still have it (my cousin had an level 2 ultra sound for the same reason i did and it showed no other indicators but her son was born with mosaic ds there still doing testing to find out for sure what type) so i got the new blood test with it to give me a better idea but everyone has there own choice in what they decide and every doctor or genetic counselour will give u there own opinion i just got it cuz its 99% effective and risk free eased my mind