I honestly think my 2 month old son is starting to teethe!! He has been extremely cranky and fussy…

I honestly think my 2 month old son is starting to teethe!! He has been extremely cranky and fussy for the past 2 days , and nothing seems to be able to calm him down. He keeps trying to bite on his fist if he's not eating or if he doesn't have his pacifier. He's not drooling though. And he also doesn't have a fever. I'm torn between whether it's some kind of reaction from his shots this past week or--if he is actually teething. I do see one white spot behind his gum where the actual tooth will be once it grows and so I'm wondering if that's a little tooth that might be starting to try to push thru!