After you file

Do you mean the refund from it?  When did you print and mail it?

 

The IRS is not processing mailed returns right now.  And then amended returns will take 16 weeks or longer to process.

 

Once they start opening the mail, After 3 weeks you can track it here,    

https://www.irs.gov/filing/individuals/amended-returns-form-1040-x-/wheres-my-amended-return-1