I am confused about pre-term labor. I had pre-term labor at 35 weeks with my first pregnancy 7 years ago. I am now 31 weeks and experiencing the same symptoms (low back pain, menstrual like cramps, change in vaginal discharge and more than 6 contractions a hour). I have moved since my last pregnancy and had to change physicians. I visited my ob's office last week and was examined by the nurse practioner who said my cervix with thinning but not dilating. She talked to my ob who put me on nifedipine every 6 hours and light bed-rest for one week. After 2 days my symptoms and contractions had not stopped I called the ob again who said it was not a problem because my contractions were not painful and did seem to lessen after first taking the nifedipine. That night I went to the hospital when my contractions were every 2-3 minutes. My doctor was there and checked me and said my cervix had not changed and did not seem concerned at all that this would send me into active labor and said it was just how my body reacts. It has been five days and I am still having all of the same symptoms. I feel like I should get a second opinion and would like some advice. Thank you.