Hi there, Welcome to HCM, Please do not worry. The NT(Nuchal Translucency ) value is only a suggestion that something may be not fine. It doesn t say that for certain. It is just a screening test, not a definitive diagnosis. The main concern when the NT is 3 is if it could be a Down s baby, but since the eggs used were of a 22 year old women, it implies that the risk of Down s by age is less than in 1000; and even if the NT measure is more it increases the risk of Down s only slightly. It would have been a greater concern if your wife s eggs were used as that would make the risk of Down to be 1 in 40 and a positive NT would further increase the chance. If the blood tests also indicate a risk then we need to do a definitive test like amniocentesis, where a bit of fluid around the baby is taken for analysis to check for Down s, and other chromosomal(gene) anomalies. But this would be slightly more complicated as you are carrying twins. It is definitely possible that both babies are normal and you will go on to have normal kids, we just need to be sure that with the blood tests, but do keep in mind to inform the laboratory that you are carrying twins and they will correlate it with the ultrasound findings to give a clear indication if further testing by amniocentesis is required or not. Be strong and do not worry. Hope this helps. Regards.