I had a newborn back in October 2019 but dont have the SSN for him yet as I am still out of the country. Can I add him as a depenedent?

[MaryK4]

No, unfortunately, if you file your return claiming your daughter as a dependent and don't provide her social security number (SSN) on your return, the IRS will not allow you to claim her as a dependent.  You can file for an extension or file without her now and amend within the three year time limit.

Please note that you cannot count your child as a qualifying child in figuring the EIC or claim the CTC/ACTC on either your original or an amended return if your child doesn't have an SSN by the due date of your return (including extensions), even if your child later gets an SSN.