To test or not to test. That is the question.

AF is expected Sunday or Monday. I swore to myself that I wouldn't test until after I (hopefully) miss my period. Last month it was too hard to see a "not pregnant" reading. I think it would be easier to see AF than those two words. But, I'm getting anxious. I thought, if it's good news, we have the weekend to celebrate. But if bad news, I'll be sad all weekend and wish I hadn't tested. I know it would for sure show up by this point is I tested and was pregnant. What to do...?