U can email them with the reason for missing the test and if they think it’s valid they will reschedule and if you do not update them they will send another test date saying Final notice
Baby would be Canadian citizen or not? YES
2. What would the procedure for birth certificate and passport? Same as Citizen
3. Baby will have health coverage or not for future vaccinations? Yes
well also need to understand that once agent says everything is fine on file it is as they also have limited info and the process takes it course within time line mentioned. I have spoken to some agents regarding issues and they have always been helpful. Be Calm