- Joined
- Apr 22, 2019
- Messages
- 32
- Reaction score
- 13
Hi everyone I’ve decided to have a go a BBT charting (never done it before) from the start of my next cycle in a few days. I’ve downloaded the FF app but need a thermometer. For all of you BBT’ers out there - what thermometer do you use? Or do you have any to recommend?