Personally, if my bloods and nt come back looking bad, I'm going for the Harmony blood test, which is not invasive like the amnio or CVS . I'm 40 which raises the risk for Downs, Edwards, Patau syndromes substantially.
I won't be going ahead with the pregnancy if it comes back positive for a number of reasons, we have no immediate support network, financially it would be a nightmare, my parents are in their eighties and will have increasing needs soon, my only sibling lives overseas, my partner's parents are also old and one suffers from dementia. It would be too much.
But, I think that if we were ten years younger, with a better support network, we'd be far more likely to go with it.