katharineb1980:No I don't I have always tracked my cycle and I used to know when I O but I had a MC in nov so I'm not sure if it changed or not
The only know way to know when you O is to temp. As has been stated 7000 times today, OPKs only tell you when you're gearing up to O.
I am sorry for your loss but start temping and charting and it will make your life easier.