Hi,
Thanks for your query.
Postinor is
emergency contraceptive pill should be taken 2 tab apart at 12hr interval with in 72hrs. of your unprotected sex.
You have not mentioned the time,dose and duration of drug.
If your period not come go and consult gynae.
Do urine,
blood test and Usg if you miss your period to rule out
pregnancy.
GOOD LUCK.
Take care.