@musgt01 , generally agreeing with the advice from @DanaB27 for adding child to your return and filing as Head of Household-- since you are indeed maintaining a household for your child. Note however, that even for this and unless the child already has SSN, you will need to get some identification ( ITIN/SSN ) for the child .
On the other hand even if your spouse has no intention of moving to USA in the future , you can still file as Married Filing Joint --- this is the most tax benign status. It just means that you would have to get an ITIN for your wife ( and child if need be, while awaiting SSN ). This can be done as part of the return filing -- just the application for ITIN can be included ( and retroactively granted ) on the return package.
I think the process has been described here in the community and if you cannot find this then let us know and one of us will walk you through this.
IMHO
pk
