Me again! I'm on my 3rd day of cefalexin and they really don't seem to be working as well as they did last time. With UTIs I only every experience frequent urination and the blood and white blood cells are detected in my urine. I am now experiencing burning when I wee and sharp period type cramps as well as back pains. Do u think I should just let the antibiotics run their course of ring my midwife? I'm wondering if there's anything she can actually do ESP on a Sunday. I'm 21 + 3 weeks