Have to peeeeeeee (no UTI)

Anyone else? I'm 27 weeks. Started on and off around 23 weeks. Urine is clean. I do feel a bit tired like my body is fighting something. They are going to do urine cultures tomorrow. It's pretty bizarre... get the urge every 10/15 min. I'm taking d-mannose with cranberry and lots of water plus yogurt and vitamin C