sky sweetheart you sound as if you are getting yourself in a bit of a tizz about becoming pregnant. I mean this in the nicest possible way.......stop analyzing what's going on in your knickers,get to the chemist buy some folic acid and take one a day. Relax and make love the same as you do now and hopefully it will happen in good time. Good on you for being aware what's going on in your own body and yes there are certain times in the month when you are more fertile but you seem to have done the right thing so far. You have not actively started trying yet so these worries are unfounded at the moment, if you have difficulty getting pregnant after quite a while (a year) then maybe that's the time to start looking a little deeper into your cycle etc etc. Good luck happy trying keep us informed.
x