Body hair. girl shaving her legs. Even before you get your first period, you will likely see new hair growing in your pubic area, under your arms, and on your legs. Aug 26, - Pubic Hair (Pubarche) For most girls, the second sign of puberty is the appearance of pubic hair in the pubic area. (About 10 to 15 percent will develop pubic hair before the breasts begin to bud.) At first the hair is sparse, straight and soft, but as it fills in it becomes darker, curlier and coarser.