Frustrated.

In the past few days I have taken 3 $1 tests with vvvfls. The last of those is easier to see. But tonight, I took a first response that a friend gave me, and no line. I dipped it though, and the urine seemed to travel soooooo slowly that I questioned if I should've just peed on the stick. I know I should just test again, and I will, but has anyone gotten a negative with fr, positive on cheapies, and been pregnant?