To evaluate the use of maternal opiates for pain control post cesarean delivery in those patients that received intravenous acetaminophen 1000 mg in 150 mL of normal saline, infused 30 minutes prior to incision compared to placebo. A comparison of post delivery length of stay in both study groups will be evaluated for cost effectiveness of the use of acetaminophen. a secondary purpose is to determine the levels of neonatal acetaminophen in cord blood at the time of delivery, since this has never been studied.