Go to hospital or just Braxton hicks? Opinions please

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I'm 34 weeks and 4 days . The past month I have been struggling with High Blood Pressure. Today when I checked it, it was 146/92. Monday it was 148/83 so it keeps going up and up and my Drs are aware. I called today and pushed my next baby Dr apt to tomorrow morning. Wether or not it has anything to do with this problem, I'm not sure. FTM here haha. I have been experiencing intense period feeling pain in my back and some tightness in my stomach off and on alllll day today and I'm wondering if this is probably just Braxton hicks or real contractions ? I have heard if they were "real contractions" you would just know. 🤷🏻‍♀️ It almost makes me sick. Go to hospital (ER because everything else at 8:11PM is closed) or wait until Dr apt tomorrow morning? Thanks