How to stop contractions?

How can I stop contractions at 35 weeks? I can’t be on my feet for no longer than 30 minutes without out having a contraction, I have been having contractions since 33 weeks and they have only gotten worse, I have already been to the hospital once to stop them but I don’t feel like going to the hospital constantly to have them stopped. I was told my daughter weighs 5 pounds already and I’m not dilating. I never had this much trouble with my other two kids. Also I don’t know if it matters but I have had sugar problems with her as well.