Period hasn’t come...

So I was suppose to get my period this pass Tuesday. I legit always get it on a Tuesday or the latest Wednesday morning. Well it hasn’t come yet. Idk what’s going on. Last month a week after my period ended I was spotting so I was nervous that it was implementation bleeding. I’ve never really been this late before and it just doesn’t feel like I’m getting my period. I was talking to my friend and she said she doesn’t think I am because I’ve been so stressed out lately but I’ve never been late due to stress. Should I test soon!?