Hiya, This is my first month of using OPK's and I was going to give up when all the sticks were used up as I am on CD22 but today with only 2 sticks to go I got 2 dark lines. I am sooooo happy to know that I am ovulating even if it is later than I thought. We are WTT but I am trying to get to know my cycles really well before we do. And to know I am ovulating is so great because I finished chemotherapy in March 2010 and that could have caused me to be infertile. So this means sooo much to me. Just had to share!!