34 weeks and bad pelvic pain

I’m 34+2 weeks today. My pelvic pressure is really getting worst where I can barely move, walk and turn on bed. The pain especially when sleeping is horrible. Today it has been more than 4 hours my lower belly feels very very heavy and doesn’t stop. Usually I’ll have very stiff belly which will go away but today for hours my belly is stiff and pressuring my lower belly. As a first time mom I don’t know what to expect