After you file

STOP ... DO NOT AMEND TO ADD THE 1095-A  ...

 

Wait for the IRS to ask for that form and the 8962  ... amending the return BEFORE the IRS asks for these items will delay the return even longer as the department which will ask for these things  and the department that processes amended returns are totally different and do not talk to each other.  AND a return cannot be amended before the original return is fully processed which will not happen with the missing 1095-A.