Late positive hcg test

Betsy
AF was due on the 30th and still getting neg pregnancy test so I don't know what to think
Yeah it may be late as well but I am not having any signs yet. I just want to see who else has had a late positive after missing AF. my mom went through it. She was 3 months along having negative pregnancy tests and they kept telling her she isn't  pregnant util getting a blood test to confirm she was and 3 months along. Only symptom is frequent urination