Why is there a line?

I’m usually run on a 24 day cycle. I’m 35 days late. Took a few pregnancy tests right away. All negative last week I took one in the morning and only waited the 2 min time and was so tired didn’t look again well I went to doctor and they took hpt tests came negative. So I pulled out my last test I did and I see a faint line huh I did another test but used evening urine. I have all symptoms of pregnancy. And we had sex during fertile window unprotected. But doc says no

came back negative. Can you see a line or is it just wrong .