hi there.....my story is pretty similar to you!
Kiki (hit my magic age of 45 and no longer TTC),but mom to a beautiful teen DD & 2 angels in heaven & married to my best friend
I used OPK's for 2 cycles, didnt get a positive at all the first time and the 2nd time I got one I think was positive but not 100% sure.
I am going to try CBE one, that gives you a smiley face or no smiley face....2 see if I have any luck with that....it's a bit more expensive, but I need something I can read, plus DF & I will just BD alot when I 'think' I am o'ing....we'll see what happens?!
Good luck to you, I hope you get a sticky bean soon!!
Welcome to the board, Melissa!