I had sex with my boyfriend 4 days before my period was due. but now im late by 4 days which normally doesn't happen to me. im also showing signs of uti and i feel my breasts are soft. am i pregnant?

Possible, check it: I guess you know what it means to be pregnant! at this point it is a guessing game - why don't you just get a urine pregnancy test or blood test to check for it? Rhythm method has a high failure rate to irregularity of menstrual cycles. If your cycles are regular - very unlikely you are pregnant. Get urine culture done to look for uti; get a pregnancy test at the same time.