Frustrated

Today I am 12DPO and going by my chart (and the BFN's I have had so far), it is yet another bust.  Cycle 6 is almost over and I still have nothing to show for the past 7 months. It hurts.  I've worked so hard, I've lost weight, I've taken medication that makes me feel crap and I've woken abruptly every morning so I can take my temperature.  But still nothing... It sucks!