Well, we are 2 for 2 with preseed now. And only 1 for 6 before we started using it. Make sure you use it to the directions though, put it in with the applicator and give it 15 mins before BD, because the temperature of it needs to be right for it to work. And we BD every other day til Pos opk, then we do 3 days (pretty much like SMEP, but adjusted for my slightly longer cycle). One of the most important things is just knowing your body. Temping was the most helpful thing to me. Also OPKs are nice, at least for a few cycles (if you are regular) to help you understand your body too.
Also, have fun. I know it is hard, but I like to do something different to try to keep it fun for DH and I. Do it in different rooms, light candles... Lingerie... Leave a trail of clothes leading him right to you. Lol.
Good luck. I will definitely keep you updated.