I have had 3 full term births and my last son was 1 hour and 20 minutes from start to finish with and i no drugs with any of them other than gas when i was induced at 19 weeks 5 days with my daughter it started out similar then it was agony i was on morphine and it took 9 hours for me to dilate as the little head is not big enough to help the cervix open once she was ready to be born the contractions stopped and the birth itself was easy and quick.
My thoughts are with you during this time and i am so sorry for your loss.