Hi purpley
Do you have a thermometer that reads to 2 decimal places? With regards to ovulation, everyone's temps are different. FF will give you a coverline and an ovulation day when you have had 3 consecutive high temps in a row. There is often a dip on ov day. If you check out some charts, you will see the red vertical line - that is ov day.
Have you heard about the free charting course that ff runs. It's great for learning all this sort of stuff.