Anyone Used ClearBlue Fertility Monitor before? Can you help?

I also loved mine. Directions sound hard but it actually easy once you start. I got pregnant first month I used mine...unfortunately had a m/c but two months later I used it and got pregnant first try again. (Now 20 weeks with little boy). It was fun...we called it my video game and I got the high score! First time we BD every high and peak day. Next time we only BD'd the last high and first peak day. Either way, worked for me. Expensive but worth every penny. Best wishes!