3 days late

I started my last period on the March 26 and my periods have been regular and on time for about 2 years now ... I have had irregular periods before due to stress and tough times. But they have been good for so long .. lately I haven’t been looking at glow I figured everything will just happen when it happens. So today glow says I’m 3 days late and I’ve been having slight cramping . Which I never have before my period only on the first day of my period. My boobs are sore but they always are before. The only thing I’ve changed lately is going crazy with sweets 🙄 idk if that would have anything to do with it. But I just need some advice . What should I do ? I don’t want to test and it be negative. But I feel like me stressing about not getting my period will only make it not come . Idk . HELP!