Confused.

Amber • 6-8-17💍💗💏 Momma of 👦👦 Trying for a 👶🌌

So today is the day my AF is predicted to come, but she hasn't yet. I took a test last night and didn't pee on it enough and messed it up. Then I woke up this morning tried it again & it came out negative but can someone tell me what that weird white line is that runs through the line. I hate these test to be honest. Both test i'v taken the lines turned out really weird and like that. Someone help. I'v been driving myself crazy.