Appointment today went well, my dr was shockingly gentle durng my exam

i am now 4 cm dialated, 75% effaced, he's sitting at the 0 station, and the dr said his bag feels tight... She predicts he'll be here within the next 10 days! This evening i am getting contractions that feel incredibley sharp in my pelvis and hurt like hell. So i am laying down timing them and seeing if they stop... Could it be the real thing?