Advice? Help?

Hello! So I'm 34 weeks and 6 days, I've been having contractions for the last 3 days potentially longer I couldn't actually feel them I just thought it was the baby moving. I didn't know I was having them till we did the stress test. I'm 2 centimeters dilated, I've been taking medication to stop the contractions but it hasn't been working, today I had 2 super super painful contractions, I haven't had any painful ones since just super out of breath and tired. We did a test to see if he would come early and it came back negative. Has anyone else experienced this? Did it lead to labor or just more like Braxton hix? I called the doctor and he said to only worry if they got more painful but in these last few hours my body feels completely different.