Hi, Thanks for posting in HCM. I understand your concern. Possibility of becoming pregnant if unprotected intercourse is performed during free days while on birth control pills is rare, as ovulation process would have been inhibited and the endometrium would have been preparing to shed off. However, since you have used birth control pills as emergency contraceptive pill, kindly complete the schedule. You need to get breakthrough bleeding within 3 weeks from the time of time intake. Until then, it is advisable to use other methods of contraception like condom and spermicides if you wish to have intercourse. In case bleeding does not happen by 3 weeks, you need to take a urine pregnancy test and seek medical attention promptly. Hope the information provided would be helpful. All the best.