Is something wrong??

I don’t know if I should have anything to worry about but my period is fairly regular and right now I’m 5 days late, which is a bit unusual. I can’t be pregnant, haven’t had sex in a few months. My nipples are really sore to touch too. A couple days before my period was supposed to start I had white discharge which I’ve never had before it was really weird. I don’t know I’m probably just overthinking it.