please help

Hey girls needing some advice ! I am late for my period by 7 days no idea why it came over 2 weeks late last month and I went to the doctors and I wasn't pregnant and they said it could have been stress which bout it on late. 
I was under abit of stress after moving around that time but I'm so confused now I'm not stressed everything is going well at the moment. I also have no pregnancy symptoms or period ones either going to take a test early tommorrow morning