Second opinion?

Today I went for my 28 week pregnancy check up and the doctor said There was a lot of bacteria in my urine. I felt like I had symptoms of BV. But he said he was going to prescribe me antibiotics for a UTI. I don’t have any uti symptoms no burning when I pee. I’m not sure if I should just take the antibiotics or go back to the doctor and see if they can check again to make sure I’m getting treated for the right infection?