Green moon - don't get hung up on numbers. I am in the same boat as you (just had FET and previous full term ICSI preg). I started a thread on this topic as I couldn't get my head around the possibility of BFN given previous success.
The reality is most second timers don't get their BFP first go and and it can be a long road. But you need stamina so take a long term view - you know it will happen, it's just a matter of when.
Having said that, I do tend to agree with your DH. It is just a number. Keep willing it along and what will be will be.