Could I be in labor?

I'm 36 weeks and 6 days pregnant. I went to the dr Tuesday and I was dilated to 2cm and 60% thinned. This morning I've been having light cramping and tightening in my lower belly and lower back pains. Been having it for about 2 hours now. Do y'all think I could be in labor? I'm a first time mom so I don't know what to expect.