Can a urinary tract infection cause your period to be delayed? im 4 days late

Not usually: While theoretically any infection or illness can affect a woman's period, in reality it is quite uncommon for an uncomplicated bladder infection to cause a missed or delayed period. A more serious kidney infection (fever, chills, feeling ill) would be more likely to have an effect. Excluding pregnancy, stress, anxiety, depression, vigorous activity, extreme dieting would be much more common cause.