For the past several years I O on cd 15 (+/- 1 day) pretty well like clockwork. I usually get a positive OPK starting two days before O (so cd 13). Then in December I had a crazy fluke cd 12 O.
Well this cycle I started having CM way early like cd 5 - so I took an OPK yesterday and today, and sure enough today's (cd 9) is really positive.
This would put me on track for a cd 11 O day. What?!? Can a cd 11 O have a healthy/viable egg, it seems too early??