Some women produce eggs and embryos, but are unable to become pregnant or carry a pregnancy to term. These women include those who have had a hysterectomy, have a uterus that does not function properly, women who have repeated miscarriages, or who are in danger of becoming seriously ill should they become pregnant. Although Columbia Fertility Associates do not recruit women for the Host Uterus Program, we do work with other agencies that provide the service and with patients who have friends or family members willing to carry a pregnancy for them.