Frer test question !!

Kel
I'm completely impatient and tested early. 5 days till af is due. I was trying to wait but...
​Anyways, I layed the test on the counter and watched the urine travel up the window. Control line came up...window completely filled. I KNOW I saw the second line. Faint but it was there. 
​After semi freaking out...I took the test to another room. Then I started questioning if I really saw it at all. Now I see nothing. 
​Anybody experience this?? I know it's early...and I will test again in a couple days. I was so excited, and now sad. All in a few minutes time.