Ingrown hairs ( PICTURE SHOWS HAIRS AND BUMPS )

Hi so I'm 14 years old . I've shaved my pubic area a few times before and never had this problem. But my most recent shaving has caused alot of ingrown hairs and bumps , some are even painful. Is this normal? And do you have other suggestions on how to get rid of hair down there without getting ingrown hairs and painful bumps ? Also very sorry if the picture is showing too much . I just wanted to help get the point across of how they look.