Hello!! Welcome to the world of TTC.
Fertility friend, temping, OPK's, checking cm and cervix position are great methods of getting to know your cycles. I have done it all and am doing it all again this cycle BUT there is some part of me that wishes I didn't know all of that, and just DTD whenever in my cycle without knowing when my fertile time it etc etc. Cause it starts driving you insane!!! You do have control over it all but sometimes if just takes the fun out of it but thats just my opinion..

If you do want that control I think that charting is the best way to go. I used OPK's this cycle but it was not much help because I didnt get that positive OPK after 10 days of peeing on the stick!!