Period

Okay, so I'm a few days away from shark week, and I'm getting a weird pain down there. Like... I don't know how to describe it. It's almost like its my pelvis that's hurting, but it's not a pulsating or sharp pain. And it's not bad either it's just like, there then it's not, and it's mostly when I'm standing or walking every once in a while. Is that normal? I don't recall having the weird pain in the past two and a half years I've been getting my period, but at the same time I almost do...