My sons mother said she accidentally claimed my son.. she said shes going to amend. what can I do?

[LeeM · Accepted solution]

You will need to wait until that amendment is processed. 

If you e-file yours before then, it will most likely be rejected, if you try to claim your son.

You can check the status of an amendment at the IRS website here:

https://www.irs.gov/filing/wheres-my-amended-return