It's virtually impossible to read your chart as you don't temp. Unfortunately, you won't know for certain that you're ovulating without taking your temperature. OPK's are rubbish, they work for some women but not for everyone. Also, your doctor telling you to count back 14 days is just ridiculous. Unless you have a 28 day cycle every single month, then you definitely won't O on CD14.
If I were you, I'd start temping. It's a bit awkward at first but it does become second nature. Honestly, of all the TTC paraphernalia I've bought, my BBT thermometer was by far and away the best buy.
GL!
