Going bananas

So I tested Thursday with some cheapies and got 3 faint positives. I'll put a pic in from my darkest. I altered it to show better but it showed the second line instantly. Freaking out I tried first response: nothing (a pink indent line after the time window but that's all) clearblue digital: not pregnant. I've had lower back pain, gas, acid reflux, and have been pretty tired. My period isnt due until the 16th so I'm trying to hold off on testing again but... I'm going insane. Someone tell me I'm not crazy.