Irregular periods and emotional stress

I’ve been having irregular periods for years now. It gets worse when I’m emotionally stressed. My boyfriend and I have been having issues lately. He’s hardly ever around because of work. He’s so busy, we hardly even get to talk. My period is 11 days late now. I know I’m not pregnant and I’m so emotional. He keeps telling me not to worry, that he loves me and he’s making plans for us to spent some time together but I’m afraid I might be losing him. 😨😨