Vanessa, I could use your nurse input. For the past couple days I've had symptoms of a mild UTI. I tested positive for white blood cells and slightly positive for nitrites in my urine, so my midwife gave me a prescription for Macrobid. The side effects are dizziness and nausea, and when I was reading to see if they get better with time, I saw some studies saying that the antibiotic may be associated with birth defects even if it's commonly prescribed in pregnancy (it's category B). I know the danger of not treating a UTI is greater, but I am still feeling worried. Any thoughts?