 We have previously shown that epidural fentanyl given in a 10 ml volume is a useful means of achieving analgesia in laboring patients receiving epidural analgesia. Furthermore, we have shown that adding a bupivacaine and fentanyl infusion increases the analgesic period. This increased analgesic duration was achieved without any clinically detectable motor block. This study is designed to determine whether there is a difference in analgesia, side effects, or analgesic duration in patients who receive a bupivacaine and fentanyl PCEA for management of labor pain. The present study hypothesizes that an analgesic protocol that includes a basal infusion rate in addition to a bolus dose controlled by the patient will have a longer analgesic duration than a pump protocol that does not have a basal infusion added to a bolus dose controlled by the patient. 