Thanks for the query.
Postinor contains levonorgesterol.
POSTINOR-2 can help to prevent you from getting pregnant, but you must take the first tablet within 72 hours (three days) of having unprotected sex.
The tablets are more effective if they are taken as soon as possible after unprotected sex.
You need to take the second tablet 12 hours (but no more than 16 hours) after the first.
yes you can have postinor twice a month but it only increases your chances of irregular cycles due to hormonal
So i recommend you to use oral contraceptive
pill instead of emergency pill.
This is to avoid unnecessary side effects.
Hope this helps.