I received fellowship support for my first semester (9/17 -12/17). My 1099 forms aren't available until 2/18. Can I amend my return with my 1099 after filing by 1/31?

I just began graduate school in September of 2017 and have been receiving fellowship stipend payments since then. However, I missed the January 16, 2018 filing date for estimated quarterly taxes on the fellowship income. I am currently waiting on my 1099-DIV forms from Schwab, which won't be available until February but I don't want to incur a penalty for not filing by the January 31, 2018 deadline for quarterly taxes. Can I file by the January 31, 2018 deadline for the fellowship income and then amend my return with the information from my 1099-DIV once I receive it?