OPK confusion

[Anonymous]

TTC 2nd DC here. Been trying 3 months with charting and 2 with OPKs. Prior to that we were trying without trying type of thing, which got us pregnant on the first try with DS 3 years ago. Total, we have been trying over 6 months now. Last month had 2 positive OPKs that perfectly correlated with rising temps. Based on my previous charts, I am estimated to ovulate today-Sat of this week. Thus, I should be getting a positive OPK today right?. I had lines yesterday and today, but neither were positive and the one yesterday was darker than today. Did I already ovulate? On day 12 and 13 of last month I got my positives and that clearly is not the case this month since I am on day 13. I guess what I am asking is-do OPKs work some months and not others? Was the darker line yesterday that although not positive, signaling the surge and I ovulated between that test and today? Or maybe I am just going to ovulate later or not at all this cycle? This is so confusing. I have been having ovulation pain and egg white CM for days now. I guess time will tell. Thanks for the vent and I hope I am making sense.

[Anonymous]

I never got + opks but always showed ovulation with temps

[Anonymous]

I don't really know much about this, but it seems to me you should try the digital ones with the smiley face. It reads it for you so you don't have to guess if the lines are shaded correctly.