Gosh, your story mad me cry.
There was a woman in my DDC when I was pregnant with DD who lost her son due to a genetic disorder. She ended up pregnant again before I gave birth to my DD and not has a beautiful son.

I am Anna, married to Jon, mother to DD Bella and I just lost our baby 2 weeks ago. My husband and I both have fertility issues and were told that there was basically no chance of me getting pregnant with out assistance, we got pregnant that month but lost it a few weeks later.
The ladies here are great and so supportive. I am glad to see that you are thinking of TTC again, although I can not even begin to imagine how scary that decision is for you.