What happens if you take postinor twice in a cycle?

Postinor is an emergency contraceptive and should be used only in an emergency (spontaneous unprotected intercourse or failure of conventional contraception, such as a condom). Please use conventional contraceptive methods to avoid pregnancy and STD's.

Postinor is an emergency contraceptive containing hormones that prevent ovulation and interfere with sperm/egg transport. It should be used only rarely as it disrupts your normal hormone balance in unpredictable ways. If you are using it this often, you should consider a different type of contraceptive (oral contraceptives, depo provera shot, hormonal Implant). Talk to your DR.