A little later in period of course, the 1200s, but St. Birgitta of Sweden was married and had quite a few children, one of whom became St. Catherine of Sweden, but on the death of her husband, she went on pilgrimage and founded an order, the Brigittines, and died in Rome.
You have to remember also that celibacy was not necessarily a rule of the early Church, although by Anglo-Saxon times they were trying their best to enforce it. But I would say that most of those women you're reading about either were widows or, which also often happened, the husband and wife agreed to separate and live in a state of celibacy and both would enter separate orders.
