P.J. is a 25-year-old primigravida who presents to the hospi…

P.J. is а 25-yeаr-оld primigrаvida whо presents tо the hospital labor unit with contractions over the last 3 hours. Frequency is every 5 minutes, contractions last 60 seconds. She tells you they are getting stronger. Her cervix was 3 cm dilated and 90% effaced, 0 station on arrival. You examine her again 3 hours later and her cervix is 4cm, cervix 90% effaced and 0 station. Your diagnosis at this time is: