UTI

Hi! 13 weeks pregnant & woke up 2 nights ago with HORRIBLE cramps in my front and back and could tell it wasn’t normal. Went to ER and said I had a uti and kidneys looked good and baby. I never got a uti before, but are cramps normal with it? I’ve been on antibiotics now for 48 hours and it’s not even close to how bad it was but I still have like a few cramps here and there. Thanks!