I have had 2 preterm babies already, and I am 29 weeks along with my 3rd. I have had a hard time getting any information that seems consistent with my normal obgyn so I would like to hear some advice from someone else. In the last few weeks I have had some menstrual like cramping and braxton hick contractions that come and go. I was checked and there was no thinning or dilation of my cervix so nothing was concerning to my doctor. Two night ago, I awoke to cramping in my lower back which lead to tossing and turning all night and no sleep. I have had the pain in my back for 2 days now. Its a dull achey pain, accompanied by cramping/spasms that will intensify and ease off. The cramping/spasms will come and go anywhere between every 10 to 30 mins and last about 30 seconds to a minute each. I have had some braxton hicks but sometimes I wont even notice them unless I physically feel my stomach. I have been drinking tons of water, I have taken Tylenol, tried cold and warm compresses and it still hasn t eased up. I cant even get comfortable in any position. Should I be concerned? I have dealt with sciatic nerve pain all my life from sports and car accidents and this isn t the same pain, so I dont believe that is what could be wrong.