Should I go to the hospital?

I just went to the dr on Monday (2 days ago) they hooked me up to the monitor and it showed I was have contractions. However my exam showed I was still just dilated one and still pretty thick. I am 34 weeks and 4 days today, last night I woke up with horrible stomach pain but the contractions were not constant just kinda hit and miss they have still been coming almost 9 hours later but still not consistency. I have also started having sharp pains in my back along with diahria. Should I go to the hospital could this be early signs of labor? This is my first pregnancy so this is all new to me.