When I was younger I thought I broke my pinky. How do I know?
It was swollen, I couldn't move it, and my nail fell off.
Does it work now? If it does, then it doesn't really matter. If it doesn't, then I suggest you see a doctor. 8)
get an x-ray of it, a trained pro can tell if a bone was broken even if it was broke 100 years ago.
If your pinky looks deformed or you occasionally feel pain, the injury might have been serious and you need to see your doctor. However, if your toe is currently perfect, you have nothing to worry about.
Slam your other pinky in a door then you will know what one looks like