Is your O day pretty consistent postpartum? I was never tracking until now. I have had a variance of 2-8 days difference in cycle length for the past year. It looks like my O day varies as well, which makes sense since my cycles have varied month to month after DS.

Has anyone else experienced this? I'm currently using the CBFM and swearing by that as my bible for O day tracking, but wasn't sure if there was a better way to figure out changing O day.