Emergency Contraceptive Pill

After 6 days of taking the second dose of nordette as emergency contraceptive pills I bleed for 4 days it means Im not pregnant? My partner pull out before ejaculation and he assures me that he is sure that he pull out correctly but I am afraid of pre-cum so I take EMERGENCY contraceptive pills....any opinion about this ? And I am delayed for 2 days,my last period is March 10-14 ,the deed was March 18,I bleed from March26-29.