Okay- to elaborate, I sometimes have 27 day cycles, 28 day cycles...and the last one I had was 30 days (very, very rare). It's been like this for quite a while now though until last cycle, I thought I was back to a 28 day one.
So this is my first time using an OPK. How do I figure out the best day to begin testing? Do I take the average of the past few months and figure out from there?
Sheila, mother to William and Min Hee, wife of David