Can i get pregnant if i took postinor 2 pill after 37-38hrs after unprotected sex?

Postinor - 2: Postinor- 2 is reported to prevent up to 95% of expected pregnancies if taken within 24 hours of unprotected sexual intercourse. If taken between 48 to 72 hours after sex it is reported to prevent up to 58% of expected pregnancies. If your period is more than 7 days late please take a pregnancy test & tell your physician or gynecologist.