Contractions

Sandy.
FTM here.  35 weeks 2 days today- I have a uterine anomaly, two cervicies and a vaginal septum which all put me at risk for pre term labor-  also high blood pressure.  Dr said we will deliver at 39 weeks if I make it that far-
My question is for the last three hours I e been having what seems to me one big contraction- really never lets up
Not really painful but super uncomfortable any advice Tia