Camille is a 32 y.o. G2P1 presenting at term with contractio…

Camille is a 32 y.o. G2P1 presenting at term with contractions every 3 minutes X 60 seconds for the past 4 hours. She slept 5 hours last night and has been drinking water and juice since her contractions began. She was 3 cm, -1 station, 80% effaced 1 hour ago. Her cervix was just checked and she is now 5 cm, 0 station, 100% effaced, vital signs stable, FHTs 140 with no decelerations. Based on this information the best diagnosis is: