I recently started sleeping with a new boyfriend, after the first time of intercourse, I got a UTI. I went to the doctor and got antibiotics, and it cleared up. However three weeks later the UTI symptoms came back, it is really uncomfortable, there is a little itching, and the discharge is white, but not too thick and chunky. Is it possible that my body is reacting to my boyfriend and got a yeast infection? Cause I was monogamous with my previous boyfriend of six years. Or is it the antibiotics? Or something else completely?