UTI and pregnant?

I'm 14 weeks and a few weeks ago I did a urine sample at my doctors and they called and said I had a uti so I went on an antibiotic for a week, I had no symptoms of a uti before that. Well after going off the antibiotic I noticed my urine was cloudy and now the past almost a week I've had cramping when I urinate sometimes. I had an appointment last Friday and I told my doctor and she took more urine to see if I have another uti but I probably won't get the results until Monday or Tuesday. The pain has gotten worse when I pee and I just worry because I've been off the antibiotic for almost two weeks and the uti seems to be getting worse and I have read bad things about having a uti when pregnant. Should I go to an urgent care today and get an antibiotic or should I wait until Monday or Tuesday when my doctor calls to get one then? I just don't want anything to happen to my baby.