Mama, please go to your OB or the hospital na ngayon para ma-check properly, hindi ko ma-tell from here kung contraction or UTI pain yan, at 35 weeks na kayo kaya important na sure tayo.
A few of us mums had back pain from UTI na nag-come and go like yours, pero contractions usually regular ang timing at tumatagal, so hindi safe mag-guess, better safe na! Let your doctor confirm kung may infection ulit or if baby's on the move na. Sending you strength, alis na agad!