Vagina

Okay for as long as i can remember ive always had a pecular vagina i always thought  that youre not suppose to have vagina lips or different color down ther & im really scared to go to a gyno & idk if she'll see me without my dad bring there & i dont want him to think im trying to have sex or that im oregnant i just wanna be kept better i guess down there & really need help on how to be presentable when going to the gyno? need advice asap please.