Black dot ; on the left of my pinky/baby toe ?

i do not know what this means , but i am afraid this might be a case of skin cancer . i just discovered it now , and i am kind of worried . i have this black dot , sort of like a mole/beauty mark on my left pinky/baby toe . i am quite superstitious , and if it brings up any superstition i am left handed also . however , this is not a beauty mark/mole . i have one on my chin and it is completely different . this black dot here on my toe is completely under my skin . it is not blood or anything , and it is NOT a bump . it does not itch , hurt , or have any other properties other than its appearance . it's like it's not even there , but you can only see it . i am scared , help ?

here are some pictures . apologies for the quality .

http://i378.photobucket0o0com/albums/oo221/iyeongjin/get-attachmentaspx.jpg
http://i378.photobucket0o0com/albums/oo221/iyeongjin/x1-1.jpg