Common symptoms of a UTI during pregnancy are similar to those that you might experience at any other time, and include: a burning sensation when you pass urine feeling the urge to urinate more often than usual urinating before you reach the toilet (‘leaking’ or incontinence) feeling like your bladder is full, even after you have urinated urine that looks cloudy, bloody or is very smelly pain above the pubic bone fever Sometimes the first sign of an infection is a faint prickly sensation when you pass urine. If the infection is more advanced and has moved up to the kidneys, you may also experience fever with a particularly high temperature, back pain and vomiting.