Faint blue dot on my screen.

I was holding my phone and just messing around with it while watching a movie earlier, and I pushed on the screen a bit (Stupid, I know). I don't know if that was the cause but there is now a faint blue dot probably ~1/2 cm in diameter in the middle of my screen. There's also a much smaller and more faint red dot a ways below that and to the left. It's definitely an issue with the LCD. It's not extremely noticeable, but when that area of the screen is black/grey it's enough to bug me. If I let it sit overnight will this just go away, or did I just screw myself? Will I have to get a replacement? I should still have a few days of warranty left so hopefully this is covered if that is the case.