I stop taking birth control in April of this year. This is our third month TTC #1 and I decided to try OPK's. I never ended up getting a positive. My doctor thinks that since everything else appears to be normal, I might not be ovulating still after stopping my birth control. I am going back for some blood work on cd 21 of my next month. Did anyone else go through a long time waiting to ovulate after stopping birth control?