Definite positive?

I took this test today around 2pm (wasn’t expecting a positive, still in shock 😱), according to my app I will be due around the 1st/2nd October… the second line came up in less than a minute just panicking because it’s a weird line not solid. Has anyone had a test like this before? Is it just because I took it in the afternoon? Going to take another test in the morning to see what that looks like