Some insight please!

Elle • Expect the Unexpected !
I believe I'm 12 Dpo, and this early morning I took a clear blue digital test. The test said "not pregnant". I have been watching some YouTube videos and I saw this one where the youtuber took the same test and it said "not pregnant" so she opened it up and there was clearly 2 lines. Turns out she was actually pregnant. 
So I decided to do that same and this is what I saw. 
I don't know if someone else has gone through this or knows someone. I just want some insight. 
Thank you ladies!