So it looks like FF is going to move my CHs to CD18 instead of CD 15, assuming that my temp doesn't drop below my cover line tomorrow morning. I'm a little peeved because we had awesome timing, assuming that I O'd on CD 15--we BD'd O-3, O-1, O, and O+1. However, if I actually O'd on CD 18, then we BD'd on O-3, O-2, O-1, and O. But we missed O +1. Not sure how important that day actually is though.

So my question is, for those of you who got BFPs while charting, which days around O did you BD? And do you think missing the day after O is a big deal? FF still gives me a "high" rating...