TTC but confused...

SC • Sat, May 07

I'm confused because Glow is telling me that today is my highest chance of pregnancy (32.9%) so I took an ovulation test this morning which was negative but then I get a notice saying I'm one day away from ovulation... So why would today be my highest chance if I don't ovulate until tomorrow? And then tomorrow's chances are lower then today. I'm confused 😔