Is something wrong with my vagina?

Today i wanted to see more "exactly" how my vagina looks like. I informed myself with everything about my body so i was very surprised to find "a part" near my vagina hole that i have never seen or heard before. I searched google imagines but i couldn t find something exactly. Between your 2 labia you normaly have just your vaginal and urethral opening and everything lays "flat" but right there i have something like a lump that looks like it comes from inside my because the skin is very slippery. It is VERY hard to explain without a real photo. Please tell my what could it be and if i have to go see a doctor. (I am a virgin in case that information is needed)