Hello, I have gone through your query and understood the concern. If you had the intercourse during your safe period, there is no need for any emergency contraception because pregnancy cannot occur. However, if you had the intercourse during your fertile period, chances of conception are high and hence, emergency contraception is needed. You can either take the pill or go for the insertion of an IUD, depending on your need. It is true that emergency contraceptive pills create hormonal disturbances owing to their high hormone content. That is why their use should be restricted to the real emergencies, once or twice a year. Occasional use does less harm. Hope this helps.