It is important to remember that pilgrimage is like all other Islamic duties. They are imposed on every individual, man or woman, in the same degree. When we stand before Allah on the day of judgement, and our deeds are reckoned for or against us, and our destiny is determined on the basis of what we had one in this life, every one of us stands as an individual. The fate of any one of us is never determined by what someone else has done for him or her. Nor is the forgiveness of any person withheld as a result of someone else's failure to do what he is required to do for that person.
Pilgrimage is a duty required of every Muslim man or woman.
But it does not become a binding duty until a person is able to undertake the journey, from every point of views. That ability includes having enough funds, transport, safety during travel, etc. When the conditions of ability are not met in the case of any particular person, that person is not required to do the pilgrimage as a duty. The same applies in the case of a married woman. The conditions of ability must be met by her, not her husband.