Ovulation same day as peak?

Jade

I got my peak on Clearblue advanced at 9am two days ago. I felt slight pinches in my uterus that night and tested again so see if it would come back with a peak again. It came back as low?

Anyway, would it be possible that I ovulated that night (12 hours after testing) or would I only have ovulated the next day?

To add, yesterday (day after peak), my cervix was very hard and no CM whatsoever which continues today.