One bfp and one bfn same urine?

Brittney β€’ 10 year old boy and 2 year old girl πŸ–€
11dpo today and I dipped a frer in a cup of my urine and the line is faint and pink.. so I wanted to see it on another test and I can barely see anything.. could the bfn test be messed up or the bfp?? I'm so upset 😣😣