Clear blue pregnancy test book icon

Morgan

Just took a clear blue test this morning...displayed pregnant with a book icon in the right corner. I’ve read that the book means error when displayed around but I am having trouble finding what it means when it is displayed with the result as well. Can I trust this? I took a different one later, and it said negative. However, the second one wasn’t my first pee of the day. Don’t know what to do. I’m 12 days late