Yes, you can but you will need to file an amended return to do so.
Would I file the amend now or do you file that later on when I get the other w2?
You would need to wait until the original return has been processed and you have the additional W-2. You could also file an extension.
Is it too late to file an extension? I saw that it’s letting my start the process, but it does say it recommends, if you owe, you pay by today’s date. I don’t think I will owe because I didn’t make a lot last year, but I’m nervous because I’m not positive
Yes, it is too late to file an extension. If you will not owe you don't need to worry. Just amend you return when you get the W-2.
Okay! Just want to make sure I have this correct, I should go ahead and finish filing for the two jobs I have W2s for and then when I receive my W2 from the last job, file an amends and include that information?