Hie.l am 20.my last period was on the 19th of June,had protected sex on day 13,19 and 20.On day 15 l took a morning after pill just in case.We always use condoms and none of them broke,l just wanted to put my mind at ease.l m expecting my menses in the next 3-7days.l now have abdominal pain , flu ,light headaches that just come and go.Does this mean my method of contraceptive failed me?