I know that ovulation can only happen once per cycle however my LH surge was late this month at CD19 and I never got the temp spike after the surge to show ovulation. Is this whole cycle a wash or should I still be using an OPK to hope for a 2nd LH surge and possibly ovulate then? I've never noticed myself not ovulating and my periods are fairly regular at around 30-32 days.  Anyone with experience in this?