A 37 yo G2P1 presents for IOL at 41 weeks gestation. Her pregnancy has been uncomplicated. Fetal monitoring is category I. She has mild contractions and rupture membranes 12 hours ago. She presently has 4 contractions every 10 minutes. Two days ago, her cervix was closed/30/-2/posterior/medium consistency, and those findings were unchanged on initial presentation. What is the next best step in treatment?