Hello, I have gone through your query and understood the concern. Since you have taken the emergency contraceptive within the stipulated time interval, you are sufficiently protected. Moreover, if you have regular 28-30 day cycles, you had the intercourse during your safe period and hence are naturally protected. You can expect withdrawal bleeding 3-7 days after completion of hormone treatment. If not, you will need further investigation which includes a trans-vaginal sonogram to know the status of the pelvic organs. Pregnancy is unlikely; hormonal imbalance is likely. Hope this helps.