HI, we were TTc for 15 mnths and got our BFP 2 weeks ago. I tried checking my Cervical position on many an occasion (sorry tmi!) but it NEVER did what the books say it is supposed to do at certain times of my cycle. I could always completely feel it, and it was always hard - sorry to be descriptive, but an honest answer is the best one me thinks! Also, i used to check my CM but again, rarely did i see a month when there was even one day with EWCM. Saying all this, it did take us 15 mnths, but according to the docs, i have no fertility problems.
I also did charting, however i only resorted to this last month, by which point i was pregnant! I also used OPK sticks from the internet and i know lots of ladies on here will have mixed feelings on them.I used them last month, and they second line was NEVER as dark as the control line, so i just BD on al the days the second line was visible which has obviously worked!!!!!!
Just take it easy, and enjoy the journey. My advice would be not to get too caught up in making a scientific process cos it can really send you round the bend! Just send yourself lots of positive messages that it WILL happen, and try not to focus to much on the when. I know this is extremely hard to do, cos i was all of the above, but i wish, looking back, i could have been more relaxed and patient about it.
Good luck, and lots of baby dust to you!