Hi, My my girlfriend period started on 12th January, 2017, we had unprotected sex on 15th Jan, 3:00am, she then took Postinor 2, both tablets at once 12 hrs later.. she started having side effects like tiredness, cramps.. also she brownish discharge 3 days later which turned into blood, It's now the 28th, she vomited... Please is the vomiting a sign of pregnancy or is this still the the side effect of Postinor 2? Also can she get pregnant even after the bleeding? Should we be worried?