Infertility, Secondary Support Group
"Secondary infertility" is difficulty conceiving after already having conceived and carried a normal pregnancy. Apart from various medical conditions (e.g. hormonal), this may come as a result of age and stress felt to provide a sibling for their first child.
You do want to know why the other tube isn't working - whether its infection, adhesions, etc to make sure it won't affect the other tube.
peace,
Angie Best-Boss