We are also at our 2 year ttc anniversary so I can entirely sympathise. It's a hard road. I'd already waited for 18 months longer than I wanted to before starting ttc, so that we had the family house, the jobs with a good work/life balance, and our 'holiday of a lifetime' before babies was back in September 2012! I was (and still am) so ready, and the years of disappointment that followed have been some of the hardest of my life.
We'll be having IVF in the spring, although we are unexplained after every test under the sun, so I guess anything is still possible!
I don't know what advice to give really mollusc except to say that don't stop doing things for you. Change your job, travel and enjoy yourself. We made an effort to do all these things in 2014 and I feel more of a complete person again. Also, it might be worth considering some private testing if you are able to, as NHS Wales have very long waits for fertility treatment unfortunately.
I start a new job in early 2015 too lindsay and I can't wait. Good luck with yours!
The two things that have helped me most have been acupuncture (lovely lady, very relaxing and supporting) and our rescue dog too who gets the full force of my need to love and nuture!
emma I know a few people who have PCOS for whom acupuncture has worked wonders, so fingers crossed for you!
May 2015 bring us all our babies!