First off this is # 2

for the past two weeks I have had moderate to severe back pain I did see gp and he just said it was normal. I havent worried this whole pregnancy but I have this gut feeling that something is wrong, so I went to the hospital after I had been cramping more than 12 hrs. They did every test possible and poked and proded me as well had me monitored. All though I wasnt dilating they were picking up contractions, I know braxton hicks contractions can last awhile but it has been slightly over 48 hrs of continuous cramps some dont hurt that bad if I keep myself distracted and the rest feel like a bad period cramp. I know some may not see a reason to be concerned but I am a little, I know they said im not dilating but at this moment im afraid of premature labor.

I am going back tuesday for another ultrasound as monday is thanksgiving and almost everything is closed. The good news is I know baby is okay as I can feel the little bugger kick with all its might. I'm 24 weeks as my ultrasound showed that im more advanced than orginally thought....

Has anyone ever gone through this>?
Anyone have advice>?