Yes, I'm also LTTTC our 2nd, and it's driving me mad!
Our DD will be 3 next month and was conceived the very first month of TTC.....our 2nd has taken exactly 2 years so far! I did get pregnant last December but sadly miscarried at 11 weeks, and nothing since. I'm finding it really hard to avoid living and breathing TTC at the moment to be honest, some days it is literally all I think about.
We're not unexplained like you as we've had a few issues along the way. Firstly my DH discovered he had a varicocele which had caused him to have low everything - count, motility, normal forms. After surgery last year that has hugely improved and he now has normal count and morphology but slightly reduced motility. On top of that I have PCOS and after my miscarriage earlier this year did not start ovulating again. We're currently on our 4th out of 6 clomid cycles so keeping everything crossed for some good news in the next few months. Clomid has sorted out my cycle but makes me feel awful and has made me put on weight, I'm desperate to stop taking it!
Good luck!
Kate x