It has only been in the past 3 cycles that I have gotten a +opk. Before that I had never gotten a +opk so the faker ovulation was all typical Ovulation symptoms - ewcm, open cervix, rising and falling estrogen levels (headaches, nausea) but not the real deal.
Even once I got off of EPO I still have faker ovulations but the +opk does tell me which one is real. Since the faker is usually CD11 I freak out thinking that is the real deal.