I've ditched my cbfm! It didn't help me really at all because it would go to peak over a week before I was close to ov, and that annoyed me. So I will stick with cm, temp and cheap opks, not ic but this other shit brand...now that I've learned how to read them I can get closer to ov date. I wish I ov'd at a predictable time! I find that the most frustrating thing. When we have timed it correctly we have been successful, but the only way to really time it right is to have daily sex....and to be honest I'm just over it!