When you come to that stage, you will know what to do. If everybody say cannot but it doesn't affect them but you only.
Illegal or not - you come to that stage doctor will advise you. Private will ask u when you and ur wife go do check up. Traditional they measure the neck width from the Xray. U pay is to do actual test - which is much more accurate.

This is true. You can only abort if the child risk the health of the mom.

Like I mentioned, u guys happy gives answer when you have not even come to this stage.
If u use religion as argument, u will already have answer. If that's the case, don't ever ask the doctor to even test or give u answer. That's why private practice ask you u advance what is your view.

Once u come to this stage u will figure out.