Ovulation Tests

Kris

Has anyone ever had negative ovulation tests for several days in a row and then all of the sudden had a positive and actually ovulated? Usually I have a lead up of them slowly getting darker but this month it was like negative for 5 days, and then BAM POSITIVE. I've had a lot of egg white cervical mucus but got my covid booster and was worried that would mess with my cycle a little. I'm also tracking basal body temp so will that go up if I do indeed ovulate today? Or could it still increase if I haven't actually ovulated? Thanks for your help! It just seemed weird this cycle.