You can take emergency contraceptive
Thanks for writing to XXXXXXX
You can opt for emergency contraceptive pills also called as postcoital pills.
It should be taken within 72 hours of unprotected intercourse
.These are highly effective medicines if taken within the time period.
It is up to 99% effective if taken within 12 hours of unprotected intercourse.
In India it is available with many brand names like unwanted 72, i-pill etc.You can choose any one.
These pills have various side effects,most common is alteration of normal pattern of the menstrual cycle.
Hope i have answered your query.
Further queries are most welcome.