Late Period

Hey girlies!!! I need some advice or maybe feedback?? So here’s what’s going on-

My period has always been super normal, i’ve never had it be late at all over the 6 years that i’ve had it. (i’m 17) Last month I was late and I didn’t really think anything about it, I thought it was gonna come, but surprise! It didn’t. So this month rolls around, and it’s already almost the end of October right, and my period for THIS month hasn’t came either. I think it’s weird because last month and this month, the week im supposed to have it- i have all of my symptoms I normally get before having my period. I break out, get cramps, and cravings- but nothing happened!! and recently I’ve been having some bad stomach pain these past few days, and i’ve been feeling very nauseous. I have no idea what is going on (and yes, I am a virgin so there’s no way that I’m pregnant) Does this sound like something I should get checked out or maybe I should wait and see?? Idk but I figured i’d post on here to see what some of you say so I can get some feedback! Thanksss❤️