Hey everyone, so today I started my period, which is weird because I just had it last week. I know this isn't normal, but could it just be a fluke? It's never happened before. I tried looking this up on Google and I got that it could be anything from vitamin deficiency to cancer, so I was hoping for some advice from somebody who's had some experience with this. Thanks!
Some clarifications: I'm 18, not on birth control, and most definitely not pregnant.