Ya sometimes there can be some menstrual irregularity following intake of emergency pill.... if your periods, that u had after a gap of 60days, were normal then just wait and watch for next periods . Consult a doctor if following periods are also abnormal. If the bleeding in your last periods, that you had after a gap of 60 days, was not normal then just do a pregnancy test yourself. If its normal then just wait and watch else immediatley consult a doctor