The investigators intend to accomplish this goal by strengthening the family planning component of a well-known, effective, home-based intervention, the Nurse Family Partnership (NFP), by enhancing the nurses' access to contraceptive supplies. The investigators believe that proposed modification to the intervention, giving the nurses the ability to deliver hormonal contraception in the home, will enable the nurses to bring about greater change in the reproductive health behavior of women at-risk for unintended pregnancy. Ultimately, the investigators believe this will increase the impact the NFP has had on conception rates during the first two postpartum years.