A question about the 3rd Molar Tooth?

my 3rd molar has just been started growin as in i could see it for like around 2weeks 2day whn i was abt to brush my teeth i noticed the gum thts in between my 2nd n 3rd molar sort of came out.... im just wondering if this is part of my 3rd molar growing or is it something else.... i know some of wt i say doesnt make sense T_T but idk how to describe it much myself i hope u can help =] n thnx in advance