I understand how you feel. We tried for 8 cycles with no luck and then took a break over the summer--we moved into a new house, did some renovations, went on vaca with the kids, had some custody/court stuff with my DH and SS....so it was just a busy time, and we actually made sure to NOT BD around O time. At that point, I really felt like I needed a break, too.
(((HUGS)))
I hope taking a breather refreshes you and recharges your "mental battery." And who knows, maybe de-stressing and not focusing so much on charting, etc. will be what does the trick!
BFP vibes your way!