False negative?

My appointment isn’t til Monday. According to my LMP I’m 9 weeks today. I know I should stop testing but I’m getting antsy! Took a test this morning and the line was barely even there. 😩😩 (my first test was pulling the dye from the control) I just know the urine test will come out negative when I go in. Yes yes I know about the hook effect or whatever but has any had a false negative and ended up being pregnant anyways?! Just needed to vent and hear some stories!