Not seeing anything, does anyone else?

Emilee

So I'm between 3 and 5 days late (two diff apps say two diff things 🙄) and I tested last Wednesday 6/28 before AF (negative), Monday 7/3 the day AF possibly was due (negative), yesterday 7/5 (negative), and this morning with FMU and they look negative to me. If I don't start by next week I'm going to have a blood test done but I was just curious if it's just too light for me to see or if there's really nothing there.