Dont know if I should test

Ok so I was supposed to start on the 17th of this month. And I didn't so the tracker on here put me starting on the 19th and I still didn't start. So it moved to be starting today. So my question is if I don't start sometime today should I take a test or just wait a while longer. My cycle is usually only about 25-32 days then I start like clock work. Am never ever late. Can someone please let me know what I should do