Check here.
https://www.irs.gov/filing/wheres-my-amended-return
Amended returns can take 6 months to process.
Do not expect quick results from amending. It can take four months or more for the IRS to process an amended return.
You can watch for information here:
https://www.irs.gov/Filing/Individuals/Amended-Returns-(Form-1040-X)/Wheres-My-Amended-Return-1