I was in that same "place" last week. I sat in front of my computer trying to find the answer as to why we haven't conceived and started crying out of frustration. You are definitely not alone. Mine happened to be related to PMS... AF started the next day, which only made it worse. Sometimes, just the anticipation of getting that BFP can be overwhelming. I know when I test early and get a BFN, it only makes it worse. We've decided not to test early any more as it only leads to more frustration and tears when you see yet another BFN.
My SO had a SA done last month... which only included the count, motility, viscosity and pH. I don't know why it didn't include the morphology (shape) as this is critical to conception. So, we are going to have that test done next. The others were within normal. We didn't wait the 2 days of abstinence that was "recommended" as we wanted it to reflect what we normally do.... (every day) so we would have an accurate assessment.
I went to my OBGYN and he ordered some tests (CBC, thyroid tests and the FSH (ovarian reserve)). I haven't gotten those results yet. If they are normal, I think he is going to suggest clomid.
Just try to be positive. I know that is easier said than done and I have a hard time myself. It will happen eventually.