Uti??

You know when you go to the Obgyn checkups and they make you pee, does that check for uti each time? They said I had an uti at the doctors office a couple weeks ago on the rapid with blood and gave me antibiotics. Then I went to the Obgyn and they tested and it was negative… and then the first doctors office called me days later and said rapid was positive, but the one they send out was negative and I can stop the antibiotics if i didn’t think they were helping, so I did stop them.. I’m just making sure I still don’t have this uti, since I did stop the antibiotics. I never had really any symptoms when they said I had one, but was dealing with severe constipation 😩 so lots of back pain, upper abdominal pain. Not sure if those are symptoms of one