The wait!

So i am due to test in a few days. The 2 week wait. I have 3 days left until i hit 2 weeks. Its killing me. The test is just screaming at me! Take me take me take me.. I am about to pee on you i say. I mean what big difference can 3 days make. The test looks for at least 25. I can always get another one. But i dont want to be a pee stick junkie... My question is, is there a big difference if i take it now vs in 3 days?