<s>[INST] Hi, i had sex saturday night. She is on Birth control and i used a condom pulling out even to be safest. Her period was supposed to start monday or tuesday and it is now thursday. On wednesday i bought her the plan b pill to take as another prescaution. Is she pregnant or can periods come late? [/INST] Hi,From history risk of having pregnancy is rare as she is on oral contraceptive plus you had sex with condom and used withdrawal method.There might be having some another reason for delayed period.Consult gynaec if she did not get period for few days.Ok and take care. </s>