You can call the MaterniT21 company directly. If insurance cover it, they
charge about $2,760. If insurance doesn't cover it, they charge you less
than $300. And if 'not reportable', they won't charge you.
I did it twice, along with the traditional one. Both 'not reportable'. They
charged insurance twice, insurance paid, then they revert the charge and
refund insurance.
Remember, there is a chance the baby's gene doesn't leak into mother's blood
that could cause 'not reportable'. Then you don't want to miss the timing
for traditional way.