sandygirl, the girls here have already put into words my frustration and despair at trying to conceive #2. It's so hard when all you keep thinking of is the age gap between siblings getting further and further apart. People can be insensitive with their comments and it comes from a lack of understanding of what infertility does to us emotionally.
When there's an empty space in your family, no matter if it's child #1 or 2 or whatever, it doesn't make ltttc any easier.
Sending you lots of good wishes and hugs. It helped having my DD to hug close when each cycle didn't give us good news. It gave me strength to keep trying.