Is ovulation coming??

Keri

I took an ovulation test last night at 5:30 and it was negative and then I took another ovulation test this morning at 9am and it was positive!! Does my BBT chart match this?? Could I be ovulating soon?? I did wake up in the middle of the night to use the bathroom so I’m wondering if that could also be why my temp increased? I’m going to take another ovulation test later just to be sure!!