New to bbt charting

Adrianna

This is my first month charting, and I am a little confused on how to track when I’ve ovulated. Some places of read that your temp needs to stay elevated for 3 days to indicate ovulation, and then other places I’ve read that it needs to rise for 3 days. What does this look like to you guys? I thought I ovulated on cd 14, but then I had the small dip on cd 16, not sure if it means anything