I'm looking for a diagnosis
When the efforts for conceiving a child take a long time and do not bring any effect, it is worth looking for the cause of this situation. A properly made diagnosis is the first step to effective treatment.
Not only the woman but also her partner should undergo fertility tests, because infertility is a shared problem of the couple and the reduction in reproductive capacity affects both sexes to the same extent (moreover, it happens that diminished fertility occurs simultaneously in both partners).