Um derr-what does bbt mean? I know Im gonna look like a d***h***d when you tell me(lol)
I reckon a normal digital would have to work. I had no intention of buying a new one. I think its all a bit of a rort really, but hey. Know what you mean about getting caught up, but let's face it. We are already.
Do you have to be at the start of your cycle with FF? Or can you start charting whenever??