On 18th of may I did intercourse with my gf without protection than within 3 hrs she had eaten I pill n after 7 days she got her peroids /she bleed for 4 days from 26-29 actually she has got her periods two time in same month that is on may previously on 7th may than after taking ipill on 26th may n now it's 19th July she did get her periods I also want to tell that she is also taking medication for her allergy.. Plz help us out sir plz plz..