30 contractions per day, 29weeks

I'm 29 weeks pregnant and for a few weeks, I've been having a lot of contractions -like 30 or more per day. some cone every hour, but some chime every 10-15 minutes apart. I'm seeing my doctor weekly now, but she's kind of vague and sometimes thinks I'll deliver early and then other times says maybe I just have any irritable uterus. anyone else have a similar experience?