UTI and late period?

HELP!   I'm 4 days late. I tested positive for UTI a few days before AF was due. It went away very quickly ( like two days after I tested with AZO). My SO said that it was too quick and thought I was lying about it being cleared. Was supposed to start on the 2nd of November..... And nothing happened. I usually get bad cramps and sore breasts but I feel great this time. My nipples are super sensitive and in the morning I have a few very light cramps but no AF. I've taken two test on the first and second day. They were negative. Could the UTI be making my period late? Is that possible?  Help!  I'm kinda panicking that it could be something really bad!!!