My stomach has been getting worse all night, it's going quiet every 5 …

My stomach has been getting worse all night, it's going quiet every 5 minutes then for 2 minutes it lets up and then starts again on Tuesday. It came out like a small piece of cork, I'm 34 weeks pregnant. Do you think I should go into labor soon? Or is this just practice contractions? Should I go to the hospital or not? At 30 weeks I was in the hospital twice with false labor I don't want to worry my loved ones again if it's just practice Has anyone else had this? First-time mom