Am I going through puberty or getting my period. I was at a pool and when I kicked ,just above my vagina hurt I got cramps on te left side of my belly bouton and when I puff out my tummy it hurts like crazy and I feel like water moving in itmy nipples are sorta round I'm very flat chested but I'm rising little bitty nipples were hurting the other day I dot normally pee in my pants but. I was just standing and kinda pees a little btw I'm 11 my momwas an early bloomer my sister bloomed in fourth grade