TTC need some suggestions

My boyfriend and I have been trying to conceive since Dec 2014 after a miscarriage and D/C in August 2014. We have tried everything from A-Z except <a href="">IUI</a> and <a href="">IVF</a>... Pills vitamins different positions cm checks drs etc. Just curious if anyone was TTC with no success until you've tried something different and if so what did you and/or your partner do differently?