Kathy, your post appeared while I was writing my response and you raised something I had intended to address, but forgot.
Regarding Clark wanting the child more than Lois. I think this says a whole lot about Lois's deep love for Clark. They both know he is the reason they can't have children. For her to continually express her disappointment and her yearning would be incredibly painful for him.
And, it could be argued that it would be kind of cruel of her to keep reminding him of it.
She doesn't. She has a strategy - her job - to avoid doing it. The strategy doesn't work out all that well, but Lois deliberately tries not to emphasise her grief because she knows how much it will hurt Clark.
I was trying to show that they equally want a child, but they dealt with not being able to have one in very different ways.
Corrina.