BBT ? Need help understanding

Talasha

I’m new to tracking BBT. I only started 6 days ago because I thought I had missed ovulation and wanted to start fresh however , I had a rise in temp the day I got a positive digital OPK. A dip the day glow predicted ovulation which was Monday , Monday night I had some cramping and tenderness in my left side only. Tuesday temp was the same low temp as Monday & then today a slight rise .

Just looking for someone to help me understand what this means