I had the Nuchal scan at 12 weeks and also the 1st part of the blood test that was associated with detecting baby's abnormalities. Everything was fine. Then the 2nd part of the blood test was done when I was 15 weeks and my OB just called me that there's some concern and I might have to come for an amnio test. She's going to consult another doc and will get back to me tomorrow and maybe with a date for the amnio test. She said there's less than 5% chance something could be wrong but wants to make sure its a healthy baby.

Its hard not to worry at this point. Anyone went through this? I'm 16 weeks now, 32yr old. I don't think I had this test with my first but don't really remember. I've also heard that with amnio test there a chance of miscarrying. Is it valid even at 16 weeks? What does the blood test detect that the sonogram doesn't?