Hi, I'm new here, I just wanted to give anyone out there some hope if they are going through what we have just been through. At our 12 week NT scan we were told everything looked great, then the sonographer came back with the blood test results and said I had low PAPP-A and hcg and therefore we were in the high risk range for Trisomy 18 (1/103). We were both shocked and horrified that there could be something wrong, you always hope it won't be you, especially after doing a bit too much internet research. They told us to come back for a 16 week scan which would tell us if there were any major abnormalities associated with the disorder. It was a very very long 3 week wait. To cut a long story short I am now 24 weeks pregnant and 4 scans later there are no detectable abnormalities and the consultant tells us it is very very unlikely that our baby has T18. We declined the amnio because they couldn't see anything wrong (and should be able to if it were) and we didn't want the additional risk but I will continue to have regular scans to check growth - another explanation for the low PAPP-A levels - but all is looking good so far. After many tears to start with we are now looking forward to the March arrival of our (hopefully) healthy second baby boy!