Not much to interpret so far sorry, just AF has started and temps are low and have been dropping. You've had one high temp. That could be because of waking later, having a fitfull sleep, being unwell, or drinks the night before hand.
When you ovulate, your temp will go higher than it has been. If it stays high for 3 consecutive days you will yet cross hairs to confirm am ovilation date. Then when af is on the way again your temp will plummet. Ill post a pic of one of my charts.