i think you just answered your own question @manHa same thing happened to me a while back. make sure to keep the nail bed clean. and keep the growing nail from going too dry, otherwise it'll start to curl inward and pinch like a ***tch. that's what happened to me and i had to have the damn thing pulled out again surgically.
hahaha... i think the color of your toe nail is kinda grayish black. it will take a little time for the new nail to grow again...