Coming off bc and period

In March 2013 I stopped my pill my period didn't change was still regular then in oct 2013 I. Got a uti and there was blood in urine went on antibiotics and missed my period I had a 50 something day cycle compared to a 30 day normal one I was 20 days late then got my period heavy anyway went bk on bc in March 2014 just asking now should I class that as a normal cycle if af didn't change after stopping and how will I know if I'm regular after I stop bc next month and possible have a 30 stay cycle currently a 28 cycle now