I had the NT scan done for 2 main reasons. Firstly because I'm an old duck! and 2 so we could check on the general progress of our bubs. I really don't know what we would have done if the Downs risk had come back high. I've had a termination before (so I could start chemo) and it was the most traumatic experience I've ever been through so I don't know if I could do it again. If you are young (which you are) and feel strongly about not terminating on the basis of a disability then perhaps a NT isn't for you. If you just want to see bub then maybe ask for a general scan rather than the scan plus PAPPA.