Hi everyone

As I ovulated yesterday (according to the CB OPK), do I count yesterday as 1DPO or is today 1DPO?
i.e. is it the same as the CDs - you count the day you start as day one?

Many thanks xxx

The OPK positives tell you that you will ovulate in the next 36 hrs-ish, so I would usually add a day.

For Example, I got +ve OPK on Sat am, but am counting Monday as my 1st DPO............Meaning I ovulated some time on Sunday.

Not sure if it is right of not, but it makes sense in my mind ( & DH's) so that we don;t test too early.