Hi doctor, i took postinor-2 at around 3pm and had sex at night, can i still get pregnant?

Hmmm....: Emergency contraception is for use AFTER sex, when the primary contraceptive method failed. Postinor 2 is therefore not to be taken earlier in the day in order to go have sex later in the day. That would be a no-no. Avoid emergency contraception by always having a Plan A, one's primary contraceptive. Postinor 2 works most but not all of the time. One should do a home pregnancy test 3 wk after sex.