Stimulus check received AFTER taxes (1040) were E-Filed

Hi! I E-Filed yesterday (01/28/2021) and had NOT received my stimulus check at that time.

 

In the TT program, I answered "No" where it asked me if the 2nd check had arrived.

 

Today, 20 minutes ago I received the deposit notification that I had received the 2nd stimulus check at 3:24 EST, 01/29/2021.

 

My E-File is still "pending".

 

So, what do I do?

 

I thought that 2020 1040 gave anyone who hadn't received the stimulus an equal credit against their taxes. Is that what happened? 

 

Since I DID, in fact, receive the funds, do I need to amend if the IRS accepts my return? (I know that I just correct the 1040 if they reject the E-File).