frustrated

4 days late on my period and keep getting negatives for every pregnancy test. went and paid 20 dollars for early detection test and still negative. yet every day my period is late I keep holding hope. if I'm pregnant i just wish the tests would say already and if I'm not than this is an awful cruel joke from my period considering I may be a day or two late but never 4 days almost 5 days late on my period. so discouraged and hopeful and the same time!