AF due today

Desiree
So AF should have started this morning. Ever since I came off birth control except for the first month when I was regulating I have had 30 day cycles always starts before 10 AM. I Haven't gotten it yet it's 6:00 now, and no cramps like I usually get the few days before it starts. I did test this morning on an frer and got a negative. However I was extremely nauseous all morning. My husband said I turned white as a sheet this morning and I had to sit on the floor I was so nauseous. Is it possible I got a false negative? Or am I just holding out hope for nothing