i once had a young, primip push for an hour, when the doctor came in , he checked her and laughed. he called me out of the room and informed me that she was only 5 cm. he told me to recheck and reach extremely posterior, when i did, i felt the plain as day 5cm cervix, talk about embarrassing. especially since the poor girl was now completely exhausted. after that, i've always reached as posterior as possible before declaring anyone complete