Hi..I need your help..actually my girlfriend s finished in the 6th of march and we had sex on the 14th of march..I gave her an ipill within 72hr..on the 21th she started bleeding till 24th..but today is the 11th of april and still,she has not got her mens..I got a pregnancy test done and the result was negative.but stil im worried why she has not her mens..thank you plzz help