Need advice

Okay momma's I need some advice, because anxiety is NOT my friend. I went to the dr on Wednesday. They told me I had a uti and after cultures they would call me in antibiotics. Its Sunday and they never called in meds. I get asymptomatic utis. In 2015 I was hospitalized when a uti turned into Pylonphiritis and I turned septic and almost died. I'm now having cramps and severe right side back pain. The back pain scares me bc that's one of the only symptoms I had before it got bad last time. I'm 23 weeks pregnant today and I'm just scared , for lack of a better word. Should I go to the hospital (hour drive in severe weather) or wait until tomorrow and call me dr?