A nurse is caring for a client who is receiving 1 milliunit/min of oxytocin for the induction of labor. The provider prescription reads to increase the rate by 1 milliunit per/min every 30 min until the client demonstrates an expected labor pattern. The cervical Bishop score is 2. The monitor indicates contractions every 1 min. Which of the following findings indicates the nurse should titrate the infusion rate to 2 milliunits/min after the first 30 min?