I'm 23 weeks pregnant and I've had terrible lower back pain for a few days. Today I woke up in so much pain I could cry. I now have a constant ache/pain in my lower abdomen. I've taken a Tylenol, drinking water, and resting as much as my 2 year old allows me. Does it sound like a possible uti? I've never had a uti before but that seems to be the biggest thing associated with the pains.