Worried about pre-term labor at..33wks 2days pregnant..:-(

I am 33wks 2days pregnant and over the past 3 or so days I think I hav lost my mucus plug, my head has been hurtin,my bak has been hurtin, very hard pushes from my baby, I think she has dropped, I can feel her movin about 3inches above my pelcic bone and I'm nausious,, shud I be worried about goin into pre-term labor? I dnt go bak to the dr until nxt tuesday and I dnt wanna go into labor,, sumone plz help,,,:-(