BBT chart thoughts? Ovulation spike?

I’m real confused because my temp usually drops during this time but I got a spike?? and my temp have been real low this cycle compared to last it stayed 97.4-8 . Did I ovulate early or something ? Oh and should I BD again?? We had sex just after 12am .. so the 5th coming into the 6th. Should we do it again or wait til tomarrow?