Negative tests, missed period, nauseous AF

Hey everyone. I’m trying for my second baby and I think I’m already pregnant! My tests all say negative/not pregnant but I’m 5 days late. My period is so consistent I could set a timer to it. My monthly alerts pop up within an hour of my period, and never more than 6 hours beyond the notifications.

Last night and this morning I’ve felt VERY nauseous. There have been other symptoms along the way—crazy headache, tender breasts and sense of smell picking up some funky smells no one else can smell. I’m so confused about the tests. I thought I was going to throw up while taking this most recent test. I thought for sure feeling so nauseous this morning that today would be the day I’d get the positive test. Anyone else experience this?